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boson.com

boson.com is SSL secured

Free website and domain report on boson.com

Last Updated: 28th April, 2022 Update Now
Overview

Snoop Summary for boson.com

This is a free and comprehensive report about boson.com. Boson.com is hosted in Washington, Virginia in United States on a server with an IP address of 40.71.45.251, where USD is the local currency and the local language is English. Our records indicate that boson.com is privately registered by Domains By Proxy, LLC. Boson.com has the potential to be earning an estimated $6 USD per day from advertising revenue. If boson.com was to be sold it would possibly be worth $4,390 USD (based on the daily revenue potential of the website over a 24 month period). Boson.com receives an estimated 2,105 unique visitors every day - a large amount of traffic! This report was last updated 28th April, 2022.

About boson.com

Site Preview: boson.com boson.com
Title: Boson Software
Description: We specialize in IT training and certification preparation, developing NetSim network simulator, practice exams and courseware to help you achieve success.
Keywords and Tags: education, reference
Related Terms: courseware zcu, e simulator, iracing simulator, simulator, zcode simulator
Fav Icon:
Age: Over 27 years old
Domain Created: 17th December, 1996
Domain Updated: 18th November, 2020
Domain Expires: 16th December, 2022
Review

Snoop Score

3/5 (Great!)

Valuation

$4,390 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 273,967
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 2,105
Monthly Visitors: 64,073
Yearly Visitors: 768,363
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $6 USD
Monthly Revenue: $183 USD
Yearly Revenue: $2,190 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: boson.com 9
Domain Name: boson 5
Extension (TLD): com 3
Expiry Check:

Page Speed Analysis

Average Load Time: 1.36 seconds
Load Time Comparison: Faster than 66% of sites

PageSpeed Insights

Avg. (All Categories) 69
Performance 82
Accessibility 76
Best Practices 60
SEO 91
Progressive Web App 36
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://boson.com
Updated: 3rd May, 2021

1.17 seconds
First Contentful Paint (FCP)
71%
25%
4%

0.00 seconds
First Input Delay (FID)
100%
0%
0%

Simulate loading on desktop
82

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for boson.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Speed Index — 1.3 s
The time taken for the page contents to be visibly populated.
Time to Interactive — 1.3 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

First CPU Idle — 1.3 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 40 ms
Users could experience a delay when interacting with the page.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive boson.com as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
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Image
https://www.gstatic.com/verifiedreviews/orange_stars_large.png
h2
833.18700001109
839.61700007785
1494
945
200
image/png
Image
https://www.gstatic.com/verifiedreviews/en/gcr_logo_stacked.png
h2
833.36899999995
839.29200004786
2049
1499
200
image/png
Image
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=_b,_tp/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=byfTOb,lsjVmc,LEikZe
h2
885.55400003679
889.95400001295
13981
36555
200
text/javascript
Script
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=LEikZe,_b,_tp,byfTOb,lsjVmc/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=xUdipf,n73qwf,UUJqVe,IZT63,vfuNJf,ws9Tlc,NwH0H,MpJwZc,PrPYRd,SF3gsd,NpD4ec,gychg,hc6Ubd,vhDjqd
h2
890.65200008918
895.64200001769
22584
64319
200
text/javascript
Script
https://apis.google.com/js/api.js
h2
923.475000076
942.07900005858
5776
12519
200
application/javascript
Script
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=gapi_iframes,gapi_iframes_style_common/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
h2
949.5590000879
955.15700010583
41971
122584
200
text/javascript
Script
https://api.hubapi.com/hs-script-loader-public/v1/config/pixel/json?portalId=70217
h2
996.25399999786
1044.3010000745
1414
142
200
application/json
XHR
https://track.hubspot.com/__ptq.gif?k=1&sd=800x600&cd=24-bit&cs=UTF-8&ln=en-us&bfp=2154699462&v=1.1&a=70217&pu=https%3A%2F%2Fboson.com%2Fdefault.aspx%3Fr%3D1&t=Network+Simulator+-+IT+Practice+Exams+-+Training+%7C+Boson&cts=1620003691446&vi=21366728942e05007b1c62f81074747c&nc=true&u=46483512.21366728942e05007b1c62f81074747c.1620003691439.1620003691439.1620003691439.1&b=46483512.1.1620003691439
h2
1012.0740000857
1054.6460000332
1134
45
200
image/gif
Image
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=IZT63,LEikZe,MpJwZc,NpD4ec,NwH0H,PrPYRd,SF3gsd,UUJqVe,_b,_tp,byfTOb,gychg,hc6Ubd,lsjVmc,n73qwf,vfuNJf,vhDjqd,ws9Tlc,xUdipf/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=Wt6vjf,_latency,FCpbqb,WhJNk,EFQ78c
h2
1017.5340001006
1023.1370000402
13932
33101
200
text/javascript
Script
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=EFQ78c,FCpbqb,IZT63,LEikZe,MpJwZc,NpD4ec,NwH0H,PrPYRd,SF3gsd,UUJqVe,WhJNk,Wt6vjf,_b,_latency,_tp,byfTOb,gychg,hc6Ubd,lsjVmc,n73qwf,vfuNJf,vhDjqd,ws9Tlc,xUdipf/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=lwddkf
h2
1020.4590000212
1023.6640000949
787
221
200
text/javascript
Script
https://play.google.com/log?format=json&hasfast=true
h2
1047.4610000383
1058.1119999988
675
131
200
text/plain
XHR
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/1072575220/?random=1620003691495&cv=9&fst=1620003691495&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&eid=2505059651&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_his=2&u_tz=-420&u_java=false&u_nplug=0&u_nmime=0&gtm=2oa4l3&sendb=1&ig=1&data=event%3Dgtag.config&frm=0&url=https%3A%2F%2Fboson.com%2Fdefault.aspx%3Fr%3D1&tiba=Network%20Simulator%20-%20IT%20Practice%20Exams%20-%20Training%20%7C%20Boson&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4
h2
1057.7860000776
1080.7389999973
1831
1701
200
text/javascript
Script
https://www.google.com/pagead/1p-user-list/1072575220/?random=1620003691495&cv=9&fst=1620003600000&num=1&bg=ffffff&guid=ON&eid=2505059651&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_his=2&u_tz=-420&u_java=false&u_nplug=0&u_nmime=0&gtm=2oa4l3&sendb=1&data=event%3Dgtag.config&frm=0&url=https%3A%2F%2Fboson.com%2Fdefault.aspx%3Fr%3D1&tiba=Network%20Simulator%20-%20IT%20Practice%20Exams%20-%20Training%20%7C%20Boson&async=1&fmt=3&is_vtc=1&random=3083679008&resp=GooglemKTybQhCsO&rmt_tld=0&ipr=y
h2
1094.9710001005
1109.9540001014
741
42
200
image/gif
Image
https://www.facebook.com/tr/?id=1243778695783032&ev=Microdata&dl=https%3A%2F%2Fboson.com%2Fdefault.aspx%3Fr%3D1&rl=&if=false&ts=1620003692652&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22%5Cn%5CtNetwork%20Simulator%20-%20IT%20Practice%20Exams%20-%20Training%20%7C%20Boson%5Cn%22%2C%22meta%3Adescription%22%3A%22We%20specialize%20in%20IT%20training%20and%20certification%20preparation%2C%20developing%20NetSim%20network%20simulator%2C%20practice%20exams%20and%20courseware%20to%20help%20you%20achieve%20success.%22%7D&cd[OpenGraph]=%7B%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=800&sh=600&v=2.9.39&r=stable&ec=1&o=30&fbp=fb.1.1620003691143.554276898&it=1620003690922&coo=false&es=automatic&tm=3&rqm=GET
h2
2214.4940000726
2229.435000103
478
44
200
image/gif
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
233.621
7.255
245.951
5.501
415.655
6.134
421.842
29.949
451.807
24.151
482.678
5.064
490.061
6.503
499.763
13.907
513.693
7.638
529.469
13.9
545.769
13.501
563.548
9.473
585.416
11.945
597.856
32.95
638.648
9.98
651.525
9.678
662.193
7.888
671.285
13.408
692.179
15.809
710.428
27.91
750.254
39.566
793.56
5.072
844.452
7.321
855.158
15.97
883.912
32.29
916.772
7.149
927.448
6.222
933.871
19.077
972.556
6.146
992.377
21.465
1015.41
25.575
1044.632
6.631
1060.35
20.298
1082.378
5.891
1088.416
31.545
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Properly size images — Potential savings of 81 KiB
Images can slow down the page's load time. Boson.com should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://boson.com/images/youtube-icon.png
42888
42875
https://boson.com/images/rss-icon.png
19668
19576
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
38355
13091
https://boson.com/images/linkedin-icon.png
7837
7800
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Boson.com should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Boson.com should consider minifying CSS files.
Minify JavaScript — Potential savings of 7 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Boson.com should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://boson.com/WebResource.axd?d=fn0I1XgmIR5dMvX1g-QfadRk41mXgRHlh7_gc_3mbn8ZVZkMJh2dZbZJ1K22t9IeYfX9U3l0D-3DsppEsmleFndmk8XFmapva6weKDxeM2o1&t=637453852939909757
23370
6660
Remove unused JavaScript — Potential savings of 181 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
75392
56100
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
33672
30822
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
55073
29047
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=gapi_iframes,gapi_iframes_style_common/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
41971
25225
https://boson.com/WebResource.axd?d=fn0I1XgmIR5dMvX1g-QfadRk41mXgRHlh7_gc_3mbn8ZVZkMJh2dZbZJ1K22t9IeYfX9U3l0D-3DsppEsmleFndmk8XFmapva6weKDxeM2o1&t=637453852939909757
23370
22874
https://www.googletagmanager.com/gtag/js?id=AW-1072575220
34857
21639
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats — Potential savings of 134 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://boson.com/images/youtube-icon.png
42888
21632
https://boson.com/Images/NetSim-network-simulator-cisco-ccna-ccnp-logo.png
39127
18455
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
38355
18021
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021.png
35176
16114
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601.png
34122
14686
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021-1000X600.png
33038
14024
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601-1000x600.png
32179
12037
https://boson.com/images/rss-icon.png
19668
11476
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR-1000x600.png
30264
10998
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 170 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://boson.com/default.aspx?r=1
169.262
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Boson.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://boson.com/
190
https://boson.com/default.aspx?r=1
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Boson.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 56 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
20599
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
11849
https://apis.google.com/js/platform.js?onload=renderBadge
8900
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
7847
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=gapi_iframes,gapi_iframes_style_common/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
7581
https://unpkg.com/popper.js@1.16.1/dist/umd/popper.min.js
62
https://connect.facebook.net/en_US/fbevents.js
45
https://js.hs-banner.com/70217.js
44
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
0

Diagnostics

Avoids enormous network payloads — Total size was 1,316 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140679
https://boson.com/default.aspx?r=1
97887
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
75392
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
55073
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/am=AkA/d=1/excm=_b,_tp,badgeview/ed=1/dg=0/wt=2/rs=AC8lLkS6f6BA64_2aaZ6lPlgyLENIGaZrA/m=_b,_tp
50561
https://use.fontawesome.com/releases/v5.0.10/webfonts/fa-solid-900.woff2
44534
https://boson.com/images/youtube-icon.png
43166
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=gapi_iframes,gapi_iframes_style_common/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
41971
https://boson.com/Images/NetSim-network-simulator-cisco-ccna-ccnp-logo.png
39405
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
38634
Avoid chaining critical requests — 23 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Boson.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 7 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
kDcP9b
Measure
892.717
2.129
prt
Mark
835.118
iml
Mark
848.904
iml
Mark
849.551
iml
Mark
849.704
aft
Mark
849.775
O7jPNb
Mark
892.728
JavaScript execution time — 0.1 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://boson.com/default.aspx?r=1
140.475
23.852
3.538
Unattributable
75.518
1.207
0.184
https://www.googletagmanager.com/gtag/js?id=AW-1072575220
63.156
50.706
11.568
Minimizes main-thread work — 0.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
380.564
Other
131.662
Style & Layout
58.016
Script Parsing & Compilation
57.758
Parse HTML & CSS
31.934
Rendering
20.636
Keep request counts low and transfer sizes small — 84 requests • 1,316 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
84
1347997
Script
34
580877
Image
28
398098
Stylesheet
10
191031
Document
2
107628
Font
3
63872
Other
7
6491
Media
0
0
Third-party
50
620563
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
240074
0
SHOW DETAILS
101610
0
SHOW DETAILS
54195
0
SHOW DETAILS
40258
0
SHOW DETAILS
34857
0
SHOW DETAILS
30724
0
SHOW DETAILS
21674
0
SHOW DETAILS
20707
0
SHOW DETAILS
18556
0
SHOW DETAILS
13406
0
SHOW DETAILS
10120
0
SHOW DETAILS
8643
0
SHOW DETAILS
5031
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Cisco SCOR
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
Boson specializes in providing robust examination preparation materials used by…
0.053235218706763
ExSim-Max™ Practice Exams Written by subject-matter experts and designed to sim…
0.044619041659791
Courseware Curriculum & Lab Designed for instructors and individuals working to…
0.0074231679173913
ExSim-Max™ Practice Exams Written by subject-matter experts and designed to sim…
0.0074231679173913
NetSim™ Network Simulator Simulates Cisco’s hardware and software and is design…
0.0074231679173913
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoid long main-thread tasks
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
Avoid non-composited animations — 1 animated element found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element
input

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.3 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 2.2 s
The timing of the largest text or image that is painted.
Cumulative Layout Shift — 0.13
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First Meaningful Paint — 1.3 s
The time taken for the primary content of the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 660 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Boson.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140679
630
https://boson.com/Styles/bootstrap-select.min.css?v=1.0
6801
190
https://boson.com/Styles/bootstrap-checkbox-radio.css?v=1.0
3381
150
https://boson.com/Styles/global.css?v=1.3
20935
310
https://boson.com/Styles/MegaMenu.css?v=1.0
3815
150
https://boson.com/Styles/www.css?v=1.0
605
150
https://boson.com/Styles/responsive-text.css?v=1.0
365
70
https://use.fontawesome.com/releases/v5.0.10/css/all.css
9661
270
https://fonts.googleapis.com/css?family=Open+Sans:400,700
1369
230
https://code.jquery.com/jquery-3.3.1.min.js
30724
390
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js
13406
310
Remove unused CSS — Potential savings of 146 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Boson.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140679
130952
https://boson.com/Styles/global.css?v=1.3
20935
18332
Enable text compression — Potential savings of 266 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140402
119412
https://boson.com/default.aspx?r=1
97665
83810
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
33380
23607
https://boson.com/WebResource.axd?d=fn0I1XgmIR5dMvX1g-QfadRk41mXgRHlh7_gc_3mbn8ZVZkMJh2dZbZJ1K22t9IeYfX9U3l0D-3DsppEsmleFndmk8XFmapva6weKDxeM2o1&t=637453852939909757
23063
18436
https://boson.com/Styles/global.css?v=1.3
20659
15537
https://boson.com/Styles/bootstrap-select.min.css?v=1.0
6526
4987
https://boson.com/Styles/MegaMenu.css?v=1.0
3540
2487
https://boson.com/Styles/bootstrap-checkbox-radio.css?v=1.0
3105
2351
https://boson.com/Styles/landing.css?v=1.1
3144
2253

Diagnostics

Avoid an excessive DOM size — 1,087 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
1087
Maximum DOM Depth
CCNP Bootcamp
19
Maximum Child Elements
Ex-Sim Max Home …
24

Diagnostics

Serve static assets with an efficient cache policy — 38 resources found
Boson.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://js.hs-scripts.com/70217.js
60000
1315
https://js.hs-analytics.net/analytics/1620003600000/70217.js
300000
19225
https://js.hs-banner.com/70217.js
300000
15893
https://js.hsadspixel.net/fb.js
600000
3401
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
1200000
75392
https://connect.facebook.net/en_US/fbevents.js
1200000
25115
https://boson.com/Styles/bootstrap.min.css?v=1.0
3600000
140679
https://boson.com/Styles/global.css?v=1.3
3600000
20935
https://boson.com/Styles/bootstrap-select.min.css?v=1.0
3600000
6801
https://boson.com/Styles/MegaMenu.css?v=1.0
3600000
3815
https://boson.com/Styles/landing.css?v=1.1
3600000
3420
https://boson.com/Styles/bootstrap-checkbox-radio.css?v=1.0
3600000
3381
https://boson.com/Styles/www.css?v=1.0
3600000
605
https://boson.com/Styles/responsive-text.css?v=1.0
3600000
365
https://ssl.google-analytics.com/ga.js
7200000
17798
https://boson.com/images/youtube-icon.png
604800000
43166
https://boson.com/Images/NetSim-network-simulator-cisco-ccna-ccnp-logo.png
604800000
39405
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
604800000
38634
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021.png
604800000
35456
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601.png
604800000
34402
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
604800000
33672
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021-1000X600.png
604800000
33316
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601-1000x600.png
604800000
32459
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR-1000x600.png
604800000
30543
https://boson.com/Images/ExSimMaxLogo1200px.gif
604800000
26271
https://boson.com/images/boson-sprite-2-8-2012.png
604800000
20912
https://boson.com/images/rss-icon.png
604800000
19946
https://boson.com/Images/BosonCoursewareLogo1200px.png
604800000
14032
https://boson.com/images/linkedin-icon.png
604800000
8114
https://boson.com/Images/boson_pp_logo.gif
604800000
3686
https://boson.com/images/twitter-icon.png
604800000
2864
https://boson.com/images/practice-labs-menu.gif
604800000
2240
https://boson.com/images/facebook-icon.png
604800000
2196
https://boson.com/Scripts/navigation.js?v=1.0
604800000
1411
https://boson.com/Scripts/bootstrap-select-init.js?v=1.0
604800000
1129
https://boson.com/Scripts/bootstrap-detector.js?v=1.0
604800000
813
https://boson.com/Scripts/global.js?v=1.1
604800000
638
https://boson.com/Scripts/landing.js?v=1.0
604800000
438
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/opensans/v18/mem5YaGs126MiZpBA-UN7rgOUuhpKKSTjw.woff2
3.5119999665767
https://use.fontawesome.com/releases/v5.0.10/webfonts/fa-solid-900.woff2
14.413999975659
https://fonts.gstatic.com/s/opensans/v18/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
3.0830000760034
Avoid `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Source
SHOW DETAILS
SHOW DETAILS
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
Cisco SCOR
76

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of boson.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Boson.com may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
Certifications
NetSim
Practice Exams
Instructor-Led
Courseware
Practice Labs
Video
Support
Downloads 
Search
Practice Exams
Pass your Exam
Network Simulator
Gain Hands-on Experience 
Video Training
Learn the Material. 
Training
Build your Skills 
Curriculum & Lab
Learn the Material 
Practice Labs
Develop Practical Skills 
Boson specializes in providing robust examination preparation materials used by…
Company
About Us
Boson Blog
Careers
Trademarks
Products
NetSim
ExSim-Max
Courseware
Practice Labs
Training
Cisco
CompTIA
Ethical Hacking
(ISC)2
Microsoft
Support
Contact Us
Downloads
© 2021 Boson Holdings, LLC. All rights reserved.
Contact Us | Privacy Policy | Return Policy
Contact Us
Privacy Policy
Return Policy

ARIA

ARIA IDs are not unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.
Failing Elements

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements
Outstanding as stand-alone learning tools. Paired together—everything you need …

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements
html

Names and labels

Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
Failing Elements
List items (`<li>`) are not contained within `<ul>` or `<ol>` parent elements.
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Failing Elements

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements
meta

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
60

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that boson.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Bootstrap
4.1.1
jQuery
3.3.1
core-js
core-js-pure@3.0.0
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://unpkg.com/popper.js/dist/umd/popper.min.js
https://unpkg.com/popper.js/dist/umd/popper.min.js.map
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
https://boson.com/Scripts/excludes/bootstrap-select.js.map
https://js.hsadspixel.net/fb.js
https://js.hsadspixel.net/pixels-release.js.map
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js.map
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://boson.com/
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 6 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
3
Medium
SHOW DETAILS
3
Medium

Audits

Displays images with incorrect aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
URL Aspect Ratio (Displayed) Aspect Ratio (Actual)
https://boson.com/Images/boson_pp_logo.gif
60 x 25 (2.40)
124 x 60 (2.07)

Audits

Page lacks the HTML doctype, thus triggering quirks-mode
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
SHOW DETAILS
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for boson.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of boson.com on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
36

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of boson.com. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of boson.com on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 62
Performance 45
Accessibility 70
Best Practices 60
SEO 92
Progressive Web App 42
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://boson.com
Updated: 3rd May, 2021

1.86 seconds
First Contentful Paint (FCP)
55%
35%
10%

0.01 seconds
First Input Delay (FID)
96%
4%
0%

Simulate loading on mobile
45

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for boson.com. This includes details about optimizing page load times which can result in a better user experience.

Other

Estimated Input Latency — 50 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive boson.com as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://boson.com/
http/1.1
0
18.530000001192
422
0
302
text/html
https://boson.com/default.aspx?r=1
http/1.1
19.182000076398
109.08900003415
97887
97665
200
text/html
Document
https://boson.com/Styles/bootstrap.min.css?v=1.0
http/1.1
129.36200003605
212.71100000013
140679
140402
200
text/css
Stylesheet
https://boson.com/Styles/bootstrap-select.min.css?v=1.0
http/1.1
129.64599998668
200.89099998586
6801
6526
200
text/css
Stylesheet
https://boson.com/Styles/bootstrap-checkbox-radio.css?v=1.0
http/1.1
130.07200008724
208.50000006612
3381
3105
200
text/css
Stylesheet
https://boson.com/Styles/global.css?v=1.3
http/1.1
130.36399998236
202.28600001428
20935
20659
200
text/css
Stylesheet
https://boson.com/Styles/MegaMenu.css?v=1.0
http/1.1
130.76700002421
202.60100008454
3815
3540
200
text/css
Stylesheet
https://boson.com/Styles/www.css?v=1.0
http/1.1
131.00799999665
201.56299998052
605
331
200
text/css
Stylesheet
https://boson.com/Styles/responsive-text.css?v=1.0
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221
200
text/javascript
Script
https://play.google.com/log?format=json&hasfast=true
h2
841.54599998146
851.3100000564
675
131
200
text/plain
XHR
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/1072575220/?random=1620003711768&cv=9&fst=1620003711768&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&eid=376635470%2C2505059651&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-420&u_java=false&u_nplug=0&u_nmime=0&gtm=2oa4l3&sendb=1&ig=1&data=event%3Dgtag.config&frm=0&url=https%3A%2F%2Fboson.com%2Fdefault.aspx%3Fr%3D1&tiba=Network%20Simulator%20-%20IT%20Practice%20Exams%20-%20Training%20%7C%20Boson&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4
h2
854.25099998247
865.90600002091
1841
1713
200
text/javascript
Script
https://www.google.com/pagead/1p-user-list/1072575220/?random=1620003711768&cv=9&fst=1620003600000&num=1&bg=ffffff&guid=ON&eid=376635470%2C2505059651&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-420&u_java=false&u_nplug=0&u_nmime=0&gtm=2oa4l3&sendb=1&data=event%3Dgtag.config&frm=0&url=https%3A%2F%2Fboson.com%2Fdefault.aspx%3Fr%3D1&tiba=Network%20Simulator%20-%20IT%20Practice%20Exams%20-%20Training%20%7C%20Boson&async=1&fmt=3&is_vtc=1&random=1732567536&resp=GooglemKTybQhCsO&rmt_tld=0&ipr=y
h2
875.63999998383
893.71400000528
741
42
200
image/gif
Image
https://www.facebook.com/tr/?id=1243778695783032&ev=Microdata&dl=https%3A%2F%2Fboson.com%2Fdefault.aspx%3Fr%3D1&rl=&if=false&ts=1620003712859&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22%5Cn%5CtNetwork%20Simulator%20-%20IT%20Practice%20Exams%20-%20Training%20%7C%20Boson%5Cn%22%2C%22meta%3Adescription%22%3A%22We%20specialize%20in%20IT%20training%20and%20certification%20preparation%2C%20developing%20NetSim%20network%20simulator%2C%20practice%20exams%20and%20courseware%20to%20help%20you%20achieve%20success.%22%7D&cd[OpenGraph]=%7B%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=360&sh=640&v=2.9.39&r=stable&ec=1&o=30&fbp=fb.1.1620003711349.1256816293&it=1620003711221&coo=false&es=automatic&tm=3&exp=l1&rqm=GET
h2
1945.0690000085
1959.4970000908
478
44
200
image/gif
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
146.95
10.467
162.93
5.384
248.508
7.087
255.656
34.349
290.017
17.113
314.357
7.922
325.806
15.881
341.726
8.381
356.809
29.671
389.294
14.53
415.479
13.38
431.701
6.576
443.652
29.311
473.734
54.119
528.32
7.926
542.117
13.357
555.921
15.387
578.626
6.335
603.313
41.621
653.729
5.511
690.661
8.752
701.685
16.311
732.851
34.742
768.298
10.651
782.854
8.346
791.488
17.622
809.127
26.652
835.825
7.694
843.813
10.255
858.929
22.463
881.797
7.078
891.198
14.504
1973.639
5.894
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Boson.com should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Boson.com should consider minifying CSS files.
Minify JavaScript — Potential savings of 7 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Boson.com should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://boson.com/WebResource.axd?d=fn0I1XgmIR5dMvX1g-QfadRk41mXgRHlh7_gc_3mbn8ZVZkMJh2dZbZJ1K22t9IeYfX9U3l0D-3DsppEsmleFndmk8XFmapva6weKDxeM2o1&t=637453852939909757
23370
6660
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 90 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://boson.com/default.aspx?r=1
90.904
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Boson.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://boson.com/
630
https://boson.com/default.aspx?r=1
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Boson.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR-1000x600.png
0

Diagnostics

Avoids enormous network payloads — Total size was 1,270 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140679
https://boson.com/default.aspx?r=1
97887
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
75415
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
55073
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/am=AkA/d=1/excm=_b,_tp,badgeview/ed=1/dg=0/wt=2/rs=AC8lLkS6f6BA64_2aaZ6lPlgyLENIGaZrA/m=_b,_tp
50561
https://use.fontawesome.com/releases/v5.0.10/webfonts/fa-solid-900.woff2
44534
https://boson.com/images/youtube-icon.png
43166
https://boson.com/Images/NetSim-network-simulator-cisco-ccna-ccnp-logo.png
39405
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
38634
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021.png
35456
Avoid chaining critical requests — 23 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Boson.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 7 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
kDcP9b
Measure
740.754
3.161
prt
Mark
676.186
iml
Mark
689.812
iml
Mark
690.428
aft
Mark
690.483
iml
Mark
690.641
O7jPNb
Mark
740.771
Keep request counts low and transfer sizes small — 82 requests • 1,270 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
82
1300521
Script
32
533182
Image
28
398108
Stylesheet
10
191031
Document
2
107825
Font
3
63871
Other
7
6504
Media
0
0
Third-party
48
573098
Minimize third-party usage — Third-party code blocked the main thread for 230 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
192522
149.268
SHOW DETAILS
101633
38.976
SHOW DETAILS
40290
12.716
SHOW DETAILS
21659
9.488
SHOW DETAILS
10143
8.728
SHOW DETAILS
34858
6.156
SHOW DETAILS
30724
4.908
SHOW DETAILS
54195
0
SHOW DETAILS
20706
0
SHOW DETAILS
18553
0
SHOW DETAILS
13414
0
SHOW DETAILS
8655
0
SHOW DETAILS
5035
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Cisco SCOR
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
ExSim-Max™ Practice Exams Written by subject-matter experts and designed to sim…
0.10857637299869
IT & CERTIFICATION TRAINING
0.029936708740085
ExSim-Max™
0.01412525366862
NetSim™ Network Simulator Simulates Cisco’s hardware and software and is design…
0.0093404461113304
Practice Exams
0.0069474392563615
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoid long main-thread tasks — 14 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://ssl.google-analytics.com/ga.js
10770
216
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
5843
166
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/am=AkA/d=1/excm=_b,_tp,badgeview/ed=1/dg=0/wt=2/rs=AC8lLkS6f6BA64_2aaZ6lPlgyLENIGaZrA/m=_b,_tp
7526
139
https://code.jquery.com/jquery-3.3.1.min.js
4054
137
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
7665
117
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/am=AkA/d=1/excm=_b,_tp,badgeview/ed=1/dg=0/wt=2/rs=AC8lLkS6f6BA64_2aaZ6lPlgyLENIGaZrA/m=_b,_tp
7825
107
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=IZT63,LEikZe,MpJwZc,NpD4ec,NwH0H,PrPYRd,SF3gsd,UUJqVe,_b,_tp,byfTOb,gychg,hc6Ubd,lsjVmc,n73qwf,vfuNJf,vhDjqd,ws9Tlc,xUdipf/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=Wt6vjf,_latency,FCpbqb,WhJNk,EFQ78c
8715
90
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=LEikZe,_b,_tp,byfTOb,lsjVmc/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=xUdipf,n73qwf,UUJqVe,IZT63,vfuNJf,ws9Tlc,NwH0H,MpJwZc,PrPYRd,SF3gsd,NpD4ec,gychg,hc6Ubd,vhDjqd
8415
70
https://connect.facebook.net/en_US/fbevents.js
5721
64
https://bat.bing.com/bat.js
5297
62
https://boson.com/default.aspx?r=1
1658
59
https://www.googletagmanager.com/gtag/js?id=AW-1072575220
4920
58
https://www.googletagmanager.com/gtag/js?id=AW-1072575220
4978
58
https://apis.google.com/js/platform.js?onload=renderBadge
3390
53
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Speed Index — 4.7 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 400 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.185
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Max Potential First Input Delay — 220 ms
Users could experience a delay when interacting with the page.

Opportunities

Properly size images — Potential savings of 68 KiB
Images can slow down the page's load time. Boson.com should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://boson.com/images/youtube-icon.png
42888
42797
https://boson.com/images/rss-icon.png
19668
19035
https://boson.com/images/linkedin-icon.png
7837
7585
Remove unused JavaScript — Potential savings of 159 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
75415
56117
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
55073
31288
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
33672
30927
https://boson.com/WebResource.axd?d=fn0I1XgmIR5dMvX1g-QfadRk41mXgRHlh7_gc_3mbn8ZVZkMJh2dZbZJ1K22t9IeYfX9U3l0D-3DsppEsmleFndmk8XFmapva6weKDxeM2o1&t=637453852939909757
23370
22874
https://www.googletagmanager.com/gtag/js?id=AW-1072575220
34858
21639
Avoid serving legacy JavaScript to modern browsers — Potential savings of 48 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
20599
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
11853
https://apis.google.com/js/platform.js?onload=renderBadge
8900
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
7847
https://unpkg.com/popper.js@1.16.1/dist/umd/popper.min.js
62
https://connect.facebook.net/en_US/fbevents.js
45
https://js.hs-banner.com/70217.js
44

Diagnostics

Avoid an excessive DOM size — 1,087 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
1087
Maximum DOM Depth
CCNP Bootcamp
19
Maximum Child Elements
Ex-Sim Max Home …
24
Reduce JavaScript execution time — 1.6 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://boson.com/default.aspx?r=1
553.436
130.696
16.336
Unattributable
367.548
4.776
0.672
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/am=AkA/d=1/excm=_b,_tp,badgeview/ed=1/dg=0/wt=2/rs=AC8lLkS6f6BA64_2aaZ6lPlgyLENIGaZrA/m=_b,_tp
231.396
201.716
17.112
https://www.googletagmanager.com/gtag/js?id=AW-1072575220
177.228
127.96
44.808
https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en_US.bSaSBnJo3mU.O/m=ratingbadge/rt=j/sv=1/d=1/ed=1/am=AQ/rs=AGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ/cb=gapi.loaded_0
173.452
154.576
12.16
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=IZT63,LEikZe,MpJwZc,NpD4ec,NwH0H,PrPYRd,SF3gsd,UUJqVe,_b,_tp,byfTOb,gychg,hc6Ubd,lsjVmc,n73qwf,vfuNJf,vhDjqd,ws9Tlc,xUdipf/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=Wt6vjf,_latency,FCpbqb,WhJNk,EFQ78c
127.804
118.604
4.248
https://code.jquery.com/jquery-3.3.1.min.js
120.252
108.468
6.4
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
117.244
90.256
20.456
https://js.hs-analytics.net/analytics/1620003600000/70217.js
82.484
72.196
7.124
https://bat.bing.com/bat.js
73.544
63.548
8.032
https://www.google.com/_/scs/shopping-verified-reviews-static/_/js/k=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.en_US.5muuzCxp7J8.es5.O/ck=boq-shopping-verified-reviews.VerifiedReviewsBadgeUi.DnfvPjHNs_0.L.B1.O/am=AkA/d=1/exm=LEikZe,_b,_tp,byfTOb,lsjVmc/excm=_b,_tp,badgeview/ed=1/wt=2/rs=AC8lLkS7iUY9nrACfBikkEaN7Xqm5w4Brg/m=xUdipf,n73qwf,UUJqVe,IZT63,vfuNJf,ws9Tlc,NwH0H,MpJwZc,PrPYRd,SF3gsd,NpD4ec,gychg,hc6Ubd,vhDjqd
70.488
55.456
12.684
https://www.googleadservices.com/pagead/conversion.js
68.668
63.828
4.804
https://www.google.com/shopping/customerreviews/badge?usegapi=1&merchant_id=124086622&position=BOTTOM_RIGHT&lang=en-us&hl=en_US&origin=https%3A%2F%2Fboson.com&gsrc=3p&jsh=m%3B%2F_%2Fscs%2Fapps-static%2F_%2Fjs%2Fk%3Doz.gapi.en_US.bSaSBnJo3mU.O%2Fam%3DAQ%2Fd%3D1%2Fct%3Dzgms%2Frs%3DAGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ%2Fm%3D__features__#_methods=onPlusOne%2C_ready%2C_close%2C_open%2C_resizeMe%2C_renderstart%2Concircled%2Cdrefresh%2Cerefresh&id=I0_1620003711512&_gfid=I0_1620003711512&parent=https%3A%2F%2Fboson.com&pfname=&rpctoken=39687427
65.504
15.5
11.956
https://connect.facebook.net/en_US/fbevents.js
63.524
51.476
8.568
https://apis.google.com/js/platform.js?onload=renderBadge
62.008
52.448
6.78
https://js.hs-banner.com/70217.js
54.424
42.956
5.02
https://www.google.com/shopping/customerreviews/badge?usegapi=1&merchant_id=124086622&position=BOTTOM_RIGHT&lang=en-us&hl=en_US&origin=https%3A%2F%2Fboson.com&gsrc=3p&jsh=m%3B%2F_%2Fscs%2Fapps-static%2F_%2Fjs%2Fk%3Doz.gapi.en_US.bSaSBnJo3mU.O%2Fam%3DAQ%2Fd%3D1%2Fct%3Dzgms%2Frs%3DAGLTcCOlScUDCc6laSimwcYo4nXUQAS-sQ%2Fm%3D__features__
51.392
17.312
3.932
Minimize main-thread work — 2.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1463.892
Other
506.44
Style & Layout
246.796
Script Parsing & Compilation
229.808
Parse HTML & CSS
138.236
Rendering
58.94
Garbage Collection
30.528

Metrics

First Contentful Paint — 4.7 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 6.3 s
The timing of the largest text or image that is painted.
Time to Interactive — 10.0 s
The time taken for the page to become fully interactive.

Other

First CPU Idle — 8.9 s
The time taken for the page's main thread to be quiet enough to handle input.
First Meaningful Paint — 4.8 s
The time taken for the primary content of the page to be rendered.
First Contentful Paint (3G) — 9930 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 2,530 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Boson.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140679
2730
https://boson.com/Styles/bootstrap-select.min.css?v=1.0
6801
780
https://boson.com/Styles/bootstrap-checkbox-radio.css?v=1.0
3381
630
https://boson.com/Styles/global.css?v=1.3
20935
1380
https://boson.com/Styles/MegaMenu.css?v=1.0
3815
630
https://boson.com/Styles/www.css?v=1.0
605
480
https://boson.com/Styles/responsive-text.css?v=1.0
365
180
https://use.fontawesome.com/releases/v5.0.10/css/all.css
9661
1080
https://fonts.googleapis.com/css?family=Open+Sans:400,700
1369
780
https://code.jquery.com/jquery-3.3.1.min.js
30724
1830
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js
13414
1230
Remove unused CSS — Potential savings of 148 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Boson.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140679
133070
https://boson.com/Styles/global.css?v=1.3
20935
18395
Serve images in next-gen formats — Potential savings of 134 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://boson.com/images/youtube-icon.png
42888
21632
https://boson.com/Images/NetSim-network-simulator-cisco-ccna-ccnp-logo.png
39127
18455
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
38355
18021
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021.png
35176
16114
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601.png
34122
14686
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021-1000X600.png
33038
14024
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601-1000x600.png
32179
12037
https://boson.com/images/rss-icon.png
19668
11476
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR-1000x600.png
30264
10998
Enable text compression — Potential savings of 266 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://boson.com/Styles/bootstrap.min.css?v=1.0
140402
119412
https://boson.com/default.aspx?r=1
97665
83810
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
33380
23607
https://boson.com/WebResource.axd?d=fn0I1XgmIR5dMvX1g-QfadRk41mXgRHlh7_gc_3mbn8ZVZkMJh2dZbZJ1K22t9IeYfX9U3l0D-3DsppEsmleFndmk8XFmapva6weKDxeM2o1&t=637453852939909757
23063
18436
https://boson.com/Styles/global.css?v=1.3
20659
15537
https://boson.com/Styles/bootstrap-select.min.css?v=1.0
6526
4987
https://boson.com/Styles/MegaMenu.css?v=1.0
3540
2487
https://boson.com/Styles/bootstrap-checkbox-radio.css?v=1.0
3105
2351
https://boson.com/Styles/landing.css?v=1.1
3144
2253

Diagnostics

Serve static assets with an efficient cache policy — 38 resources found
Boson.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://js.hs-scripts.com/70217.js
60000
1294
https://js.hs-analytics.net/analytics/1620003600000/70217.js
300000
19225
https://js.hs-banner.com/70217.js
300000
15894
https://js.hsadspixel.net/fb.js
600000
3401
https://connect.facebook.net/signals/config/1243778695783032?v=2.9.39&r=stable
1200000
75415
https://connect.facebook.net/en_US/fbevents.js
1200000
25115
https://boson.com/Styles/bootstrap.min.css?v=1.0
3600000
140679
https://boson.com/Styles/global.css?v=1.3
3600000
20935
https://boson.com/Styles/bootstrap-select.min.css?v=1.0
3600000
6801
https://boson.com/Styles/MegaMenu.css?v=1.0
3600000
3815
https://boson.com/Styles/landing.css?v=1.1
3600000
3420
https://boson.com/Styles/bootstrap-checkbox-radio.css?v=1.0
3600000
3381
https://boson.com/Styles/www.css?v=1.0
3600000
605
https://boson.com/Styles/responsive-text.css?v=1.0
3600000
365
https://ssl.google-analytics.com/ga.js
7200000
17798
https://boson.com/images/youtube-icon.png
604800000
43166
https://boson.com/Images/NetSim-network-simulator-cisco-ccna-ccnp-logo.png
604800000
39405
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR.png
604800000
38634
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021.png
604800000
35456
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601.png
604800000
34402
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
604800000
33672
https://boson.com/Images/Slider-NetSim-Network-Simulator-CCNA-ENCOR-ENARSI-2021-1000X600.png
604800000
33316
https://boson.com/Images/Slider-ExSim-Max-CEH-MD-100-SY0-601-1000x600.png
604800000
32459
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR-1000x600.png
604800000
30543
https://boson.com/Images/ExSimMaxLogo1200px.gif
604800000
26271
https://boson.com/images/boson-sprite-2-8-2012.png
604800000
20912
https://boson.com/images/rss-icon.png
604800000
19946
https://boson.com/Images/BosonCoursewareLogo1200px.png
604800000
14032
https://boson.com/images/linkedin-icon.png
604800000
8114
https://boson.com/Images/boson_pp_logo.gif
604800000
3686
https://boson.com/images/twitter-icon.png
604800000
2864
https://boson.com/images/practice-labs-menu.gif
604800000
2240
https://boson.com/images/facebook-icon.png
604800000
2196
https://boson.com/Scripts/navigation.js?v=1.0
604800000
1411
https://boson.com/Scripts/bootstrap-select-init.js?v=1.0
604800000
1129
https://boson.com/Scripts/bootstrap-detector.js?v=1.0
604800000
813
https://boson.com/Scripts/global.js?v=1.1
604800000
638
https://boson.com/Scripts/landing.js?v=1.0
604800000
438
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://use.fontawesome.com/releases/v5.0.10/webfonts/fa-solid-900.woff2
16.446999972686
https://fonts.gstatic.com/s/opensans/v18/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
3.4529999829829
https://fonts.gstatic.com/s/opensans/v18/mem5YaGs126MiZpBA-UN7rgOUuhpKKSTjw.woff2
3.5729999653995
Avoid `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Source
SHOW DETAILS
SHOW DETAILS
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://boson.com/Images/Slider-ExSim-Max-Cisco-350-701-SCOR-1000x600.png
Cisco SCOR
70

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of boson.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Boson.com may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
Search
Practice Exams
Pass your Exam
Network Simulator
Gain Hands-on Experience 
Video Training
Learn the Material. 
Training
Build your Skills 
Curriculum & Lab
Learn the Material 
Practice Labs
Develop Practical Skills 
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© 2021 Boson Holdings, LLC. All rights reserved.
Contact Us | Privacy Policy | Return Policy
Contact Us
Privacy Policy
Return Policy

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
a
Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements
Outstanding as stand-alone learning tools. Paired together—everything you need …

ARIA

ARIA IDs are not unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.
Failing Elements

Names and labels

`<frame>` or `<iframe>` elements do not have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Failing Elements
iframe
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements
html

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements
meta

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
60

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that boson.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Bootstrap
4.1.1
jQuery
3.3.1
core-js
core-js-pure@3.0.0
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://unpkg.com/popper.js/dist/umd/popper.min.js
https://unpkg.com/popper.js/dist/umd/popper.min.js.map
https://boson.com/Scripts/excludes/bootstrap-select.min.js?v=1.0
https://boson.com/Scripts/excludes/bootstrap-select.js.map
https://js.hsadspixel.net/fb.js
https://js.hsadspixel.net/pixels-release.js.map
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js.map
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://boson.com/
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 6 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
3
Medium
SHOW DETAILS
3
Medium

Audits

Displays images with incorrect aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
URL Aspect Ratio (Displayed) Aspect Ratio (Actual)
https://boson.com/Images/boson_pp_logo.gif
60 x 25 (2.40)
124 x 60 (2.07)

Audits

Page lacks the HTML doctype, thus triggering quirks-mode
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
SHOW DETAILS
92

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for boson.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of boson.com on mobile screens.
Document uses legible font sizes — 100% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
SHOW DETAILS
100.00%
≥ 12px
Tap targets are sized appropriately — 100% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
42

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of boson.com. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of boson.com on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 40.71.45.251
Continent: North America
Country: United States
United States Flag
Region: Virginia
City: Washington
Longitude: -78.1539
Latitude: 38.7095
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Microsoft Corporation
Registration

Domain Registrant

Private Registration: Yes
Name: Registration Private
Organization: Domains By Proxy, LLC
Country: US
City: Scottsdale
State: Arizona
Post Code: 85260
Email: BOSON.COM@domainsbyproxy.com
Phone: +1.4806242599
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
GoDaddy.com, LLC 23.13.154.6
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating: 3.5/5 (0 reviews)
WOT Trustworthiness: 70/100
WOT Child Safety: 91/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: www.boson.com
Issued By: Go Daddy Secure Certificate Authority - G2
Valid From: 23rd October, 2020
Valid To: 28th October, 2021
Subject: CN = www.boson.com
Hash: a5529737
Issuer: CN = Go Daddy Secure Certificate Authority - G2
OU = http://certs.godaddy.com/repository/
O = GoDaddy.com, Inc.
S = US
Version: 2
Serial Number: 1026799789954297856
Serial Number (Hex): 0E3FECF7FFABF000
Valid From: 23rd October, 2024
Valid To: 28th October, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:40:C2:BD:27:8E:CC:34:83:30:A2:33:D7:FB:6C:B3:F0:B4:2C:80:CE
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl.godaddy.com/gdig2s1-2403.crl
Certificate Policies: Policy: 2.16.840.1.114413.1.7.23.1
CPS: http://certificates.godaddy.com/repository/
Policy: 2.23.140.1.2.1
Authority Information Access: OCSP - URI:http://ocsp.godaddy.com/
CA Issuers - URI:http://certificates.godaddy.com/repository/gdig2.crt
SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
Timestamp : Oct 23 16:38:31.548 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:6C:11:B5:CC:49:C4:8C:AB:BC:A6:FE:64:
E6:35:24:4B:63:CF:5E:FA:63:89:BB:B5:E6:45:23:86:
34:56:49:BB:02:20:48:06:57:3A:C5:BE:A9:D9:C9:01:
87:76:DD:AD:37:AE:E4:F4:5C:6D:8C:8F:DD:34:B5:E2:
5A:A7:DA:92:19:45
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:
37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA
Timestamp : Oct 23 16:38:31.916 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:15:F7:20:18:F0:2B:29:0E:E4:47:93:05:
04:13:A0:30:06:39:74:F0:8C:F6:6F:72:64:33:99:DA:
52:BA:3A:9B:02:21:00:F4:76:4D:C1:E6:FC:BF:6A:75:
A9:70:FD:BD:AC:33:F1:F7:D4:5E:EF:64:5A:1D:AC:7B:
F0:82:BD:0F:19:39:C8
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:analytics.boson.com
DNS:authors.boson.com
DNS:boson.com
DNS:marketplace.boson.com
DNS:www.boson.com
Technical

DNS Lookup

A Records

Host IP Address Class TTL
boson.com. 40.71.45.251 IN 3599

NS Records

Host Nameserver Class TTL
boson.com. ns1-07.azure-dns.com. IN 3599
boson.com. ns2-07.azure-dns.net. IN 3599
boson.com. ns3-07.azure-dns.org. IN 3599
boson.com. ns4-07.azure-dns.info. IN 3599

MX Records

Priority Host Server Class TTL
0 boson.com. boson-com.mail.protection.outlook.com. IN 3599

SOA Records

Domain Name Primary NS Responsible Email TTL
boson.com. ns1-07.azure-dns.com. azuredns-hostmaster.microsoft.com. 3599

TXT Records

Host Value Class TTL
boson.com. v=spf1 IN 3599
boson.com. google-site-verification=trOupQWH7FT32cWMwFYU6y66_IKOm28K-cO8VUIuUlo IN 3599
boson.com. facebook-domain-verification=4s7l4zmmkg8qrmtfwstcvwctd0c10k IN 3599

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/8.5
Date: 3rd May, 2021
Content-Length: 97665
Set-Cookie: *
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET

Whois Lookup

Created: 17th December, 1996
Changed: 18th November, 2020
Expires: 16th December, 2022
Registrar: GoDaddy.com, LLC
Status: clientTransferProhibited
clientUpdateProhibited
clientRenewProhibited
clientDeleteProhibited
Nameservers: ns1-07.azure-dns.com
ns2-07.azure-dns.net
ns3-07.azure-dns.org
ns4-07.azure-dns.info
Owner Name: Registration Private
Owner Organization: Domains By Proxy, LLC
Owner Street: DomainsByProxy.com
14455 N. Hayden Road
Owner Post Code: 85260
Owner City: Scottsdale
Owner State: Arizona
Owner Country: US
Owner Phone: +1.4806242599
Owner Email: BOSON.COM@domainsbyproxy.com
Admin Name: Registration Private
Admin Organization: Domains By Proxy, LLC
Admin Street: DomainsByProxy.com
14455 N. Hayden Road
Admin Post Code: 85260
Admin City: Scottsdale
Admin State: Arizona
Admin Country: US
Admin Phone: +1.4806242599
Admin Email: BOSON.COM@domainsbyproxy.com
Tech Name: Registration Private
Tech Organization: Domains By Proxy, LLC
Tech Street: DomainsByProxy.com
14455 N. Hayden Road
Tech Post Code: 85260
Tech City: Scottsdale
Tech State: Arizona
Tech Country: US
Tech Phone: +1.4806242599
Tech Email: BOSON.COM@domainsbyproxy.com
Full Whois: Domain Name: BOSON.COM
Registry Domain ID: 3822046_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2020-11-18T09:15:55Z
Creation Date: 1996-12-17T00:00:00Z
Registrar Registration Expiration Date: 2022-12-16T00:00:00Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited http://www.icann.org/epp#clientUpdateProhibited
Domain Status: clientRenewProhibited http://www.icann.org/epp#clientRenewProhibited
Domain Status: clientDeleteProhibited http://www.icann.org/epp#clientDeleteProhibited
Registry Registrant ID: Not Available From Registry
Registrant Name: Registration Private
Registrant Organization: Domains By Proxy, LLC
Registrant Street: DomainsByProxy.com
Registrant Street: 14455 N. Hayden Road
Registrant City: Scottsdale
Registrant State/Province: Arizona
Registrant Postal Code: 85260
Registrant Country: US
Registrant Phone: +1.4806242599
Registrant Phone Ext:
Registrant Fax: +1.4806242598
Registrant Fax Ext:
Registrant Email: BOSON.COM@domainsbyproxy.com
Registry Tech ID: Not Available From Registry
Tech Name: Registration Private
Tech Organization: Domains By Proxy, LLC
Tech Street: DomainsByProxy.com
Tech Street: 14455 N. Hayden Road
Tech City: Scottsdale
Tech State/Province: Arizona
Tech Postal Code: 85260
Tech Country: US
Tech Phone: +1.4806242599
Tech Phone Ext:
Tech Fax: +1.4806242598
Tech Fax Ext:
Tech Email: BOSON.COM@domainsbyproxy.com
Registry Admin ID: Not Available From Registry
Admin Name: Registration Private
Admin Organization: Domains By Proxy, LLC
Admin Street: DomainsByProxy.com
Admin Street: 14455 N. Hayden Road
Admin City: Scottsdale
Admin State/Province: Arizona
Admin Postal Code: 85260
Admin Country: US
Admin Phone: +1.4806242599
Admin Phone Ext:
Admin Fax: +1.4806242598
Admin Fax Ext:
Admin Email: BOSON.COM@domainsbyproxy.com
Name Server: NS1-07.AZURE-DNS.COM
Name Server: NS2-07.AZURE-DNS.NET
Name Server: NS3-07.AZURE-DNS.ORG
Name Server: NS4-07.AZURE-DNS.INFO
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2021-05-03T01:01:27Z <<<

For more information on Whois status codes, please visit https://www.icann.org/resources/pages/epp-status-codes-2014-06-16-en

TERMS OF USE: The data contained in this registrar's Whois database, while believed by the
registrar to be reliable, is provided "as is" with no guarantee or warranties regarding its
accuracy. This information is provided for the sole purpose of assisting you in obtaining
information about domain name registration records. Any use of this data for any other purpose
is expressly forbidden without the prior written permission of this registrar. By submitting
an inquiry, you agree to these terms and limitations of warranty. In particular, you agree not
to use this data to allow, enable, or otherwise support the dissemination or collection of this
data, in part or in its entirety, for any purpose, such as transmission by e-mail, telephone,
postal mail, facsimile or other means of mass unsolicited, commercial advertising or solicitations
of any kind, including spam. You further agree not to use this data to enable high volume, automated
or robotic electronic processes designed to collect or compile this data for any purpose, including
mining this data for your own personal or commercial purposes. Failure to comply with these terms
may result in termination of access to the Whois database. These terms may be subject to modification
at any time without notice.
View Raw Whois

Nameservers

Name IP Address
ns1-07.azure-dns.com 40.90.4.7
ns2-07.azure-dns.net 64.4.48.7
ns3-07.azure-dns.org 13.107.24.7
ns4-07.azure-dns.info 13.107.160.7
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