3.5 sec in total
636 ms
2.6 sec
317 ms
Welcome to devcentral.f5.com homepage info - get ready to check Dev Central F5 best content for United States right away, or after learning these important things about devcentral.f5.com
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Visit devcentral.f5.comWe analyzed Devcentral.f5.com page load time and found that the first response time was 636 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
devcentral.f5.com performance score
name
value
score
weighting
Value5.8 s
4/100
10%
Value9.0 s
1/100
25%
Value10.7 s
7/100
10%
Value920 ms
31/100
30%
Value0.021
100/100
15%
Value19.8 s
2/100
10%
636 ms
181 ms
261 ms
350 ms
28 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 59% of them (38 requests) were addressed to the original Devcentral.f5.com, 8% (5 requests) were made to Google-analytics.com and 5% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (853 ms) belongs to the original domain Devcentral.f5.com.
Page size can be reduced by 834.0 kB (49%)
1.7 MB
872.0 kB
In fact, the total size of Devcentral.f5.com main page is 1.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Javascripts take 794.4 kB which makes up the majority of the site volume.
Potential reduce by 82.7 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 15.4 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 82.7 kB or 78% of the original size.
Potential reduce by 53.3 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Dev Central F5 images are well optimized though.
Potential reduce by 536.4 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 536.4 kB or 68% of the original size.
Potential reduce by 161.5 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Devcentral.f5.com needs all CSS files to be minified and compressed as it can save up to 161.5 kB or 80% of the original size.
Number of requests can be reduced by 26 (45%)
58
32
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dev Central F5. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.
devcentral.f5.com
636 ms
portal-dc.css
181 ms
5d87ae3e3fc3834da9693fc6b0c915ae.276.css
261 ms
08b9219406ab20008de8d9c930399c67cb65fcc1d2e1a391209b19e02e2ca14ac0591631d5a082a2
350 ms
jquery.min.js
28 ms
jquery-ui.min.js
34 ms
jquery-migrate.min.js
37 ms
whobinder.js
281 ms
WebResource.axd
389 ms
Telerik.Web.UI.WebResource.axd
522 ms
0435ee63fd700dad17f1e42a8992d5f0.276.js
269 ms
template.css
391 ms
f5-at.min.js
518 ms
f5-core.min.js
796 ms
logo.svg
191 ms
f5securitymonth.jpg
366 ms
whitehat.jpg
267 ms
mitigate-ddos-with-f5.jpg
593 ms
sealed.png
853 ms
Presentation2.jpg
258 ms
profilepic.ashx
256 ms
profilepic.ashx
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profilepic.ashx
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profilepic.ashx
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profilepic.ashx
587 ms
profilepic.ashx
583 ms
dc-home-tour.png
593 ms
devcentral.svg
590 ms
gtm.js
74 ms
insight.min.js
87 ms
TabletGothic.woff
447 ms
TabletGothicSemiBold.woff
447 ms
pixel
55 ms
f5.woff
367 ms
analytics.js
62 ms
pixel
29 ms
match-result
9 ms
collect
11 ms
collect
223 ms
collect
20 ms
collect
221 ms
whoami.aspx
121 ms
dcanswersSubmenu.html
108 ms
dcarticlesSubmenu.html
126 ms
dccodeSubmenu.html
145 ms
dcresourcesSubmenu.html
197 ms
dcaboutSubmenu.html
198 ms
loading.gif
147 ms
profilepic.ashx
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profilepic.ashx
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profilepic.ashx
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profilepic.ashx
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27 ms
ip.json
51 ms
visitWebPage
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vt.aspx
403 ms
ga.js
61 ms
collect
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__utm.gif
39 ms
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devcentral.f5.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
button, link, and menuitem elements do not have accessible names.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Links do not have a discernible name
devcentral.f5.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
devcentral.f5.com SEO score
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Devcentral.f5.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Devcentral.f5.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
devcentral.f5.com
Open Graph description is not detected on the main page of Dev Central F5. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: