SEO report of f5security.com
Redirected to devcentral.f5.com/security
Security
devcentral.f5.com/security
Error! The "meta description" is missing, the page has no summary description!
Tasks
- Avoid using deprecated HTML tags.
- Try to make your site load faster.
SEO
URL
Domain : devcentral.f5.com/security
Character length : 26
Title
Security
Keywords (meta keywords)
Good! The website does not use “meta keywords”.
Open Graph Protocol
Error! The website does not use the OG (Open Graph) protocol.
Dublin Core
Dublin Core is not used
Underscores in the URLs
Good! No underscore (_) found in the URLs.
Search engine friendly URLs
Good! The website uses SEO friendly URLs.
Checking the robots.txt file
There is robots.txt file.
https://devcentral.f5.com/robots.txt
https://devcentral.f5.com/robots.txt
| User-agent | Disallowed for the search engines |
|---|---|
| * |
|
Social
Social Engagement
No info found.
Content
Doctype
HTML 5
Encoding
Perfect! The character encoding is set: UTF-8.
Language
We have found the language localisation: ”en”.
Title
Security
Character length : 8
Improve! The website address (title) should be between 10 and 70 characters in length.
Character length : 8
Improve! The website address (title) should be between 10 and 70 characters in length.
Text / HTML ratio
Ratio : 20%
Acceptable! The text / code ratio is between 15 and 25 percent.
Acceptable! The text / code ratio is between 15 and 25 percent.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
|---|---|---|---|---|---|
| 1 | 0 | 2 | 8 | 2 | 0 |
Heading structure in the source code
- <H3> Learn F5 Technologies, Get Answers & Share Community Solutions Join DevCentral
- <H4> Explore:
- <H5> Solutions
- <H5> Technologies
- <H1> security
- <H4> Articles
- <H4>
- <H4> Answers
- <H4> Downloads and Resources
- <H3> About DevCentral
- <H4> Get a Developer Lab license
- <H4> Contact us - Feedback and Help
- <H4> Become an MVP
Word cloud
- updated30
- ago26
- security21
- stars17
- big-ip13
- web10
- weeks10
- forward8
- secrecy8
- votes8
- perfect8
- downloads7
- application7
- month6
- firewall6
- applications6
- leonardo6
- asm6
- silva5
- afm5
- microsoft5
- john5
- big-iq5
- azure5
- wagnon5
- peter5
- answers5
- view5
- member4
- lessons4
- all4
- ransomware4
- support4
- waf4
- some4
- featured4
- devcentral’s4
- cases4
- large4
- discussion4
- protocol4
- hours4
- lightboard4
- irules4
- login4
- feature4
- learn4
- mqtt4
- effects4
- side4
- unexpected4
- allows4
- vulnerability3
- secure3
- months3
- aws3
- understanding3
- devcentral3
- resources3
- networks3
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| updated | |||
| ago | |||
| security | |||
| stars | |||
| big-ip | |||
| web |
Two Word cloud
- forward secrecy6
- weeks ago6
- perfect forward6
- mqtt protocol4
- month ago3
- john wagnon3
Three Word cloud
- perfect forward secrecy4
- unexpected side effects4
- web application firewall3
- updated 3 weeks ago3
- deploying f5’s web application2
- microsoft azure security2
404 Page
The website has a 404 error page.
Flash content
Good! The website does not have any flash contents.
Frame
Good! The website does not use iFrame solutions.
Images
We found 0 images on this web page.
Good! Every image has an alternative text attributes set on this website.
Good! Every image has an alternative text attributes set on this website.
Readability
Flesch–Kincaid Grade Level
5.10
Flesch Reading Ease
67.40
Coleman Liau Index
10.70
Automated Readability Index (ARI)
2.30
Dale–Chall Readability
6.90
SMOG Index
9.00
Spache Readibility
5.00
Number of letters
5956
Number of words
1320
Number of sentences
265
Average words per sentences
5
Number of syllables
2096
Syllables in words
2042
Average syllables in words
1.59
Number of words in first three syllables
268
Percentage of word / syllables
20.30
Words not in Dale-Chall easy-word list
557
Words not in Spache easy-word list
294
Technologies
Mobile optimization
This website is optimal for mobile devices!
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Good! The web address is accessible in only one version. The www version is redirected to the version without www.
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Printability
Suggestion! Unfortunately, no printer-friendly CSS found.
Meta Tag (viewport tag, mobile devices)
Error! The meta tag named viewport is missing.
Speed test
Server response time
The server response time is not fast enough: 1.3 seconds have passed until the page started to load.
Loading time
5,452 ms
Table layout
Good! No nested tables found.
Number of HTTP resources
63
Number of source domains
18
Render blocking resources
The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files
List of render blocking javascript files
- https://devcentral.f5.com/.. /08b9219406ab20004a7288463274c48d902c6a02...
- https://dmcdn.f5.com/dh/82ab7c2056eaabcc0dfe72298e29c4bb.js
- https://dmcdn.f5.com/WebResource.axd?d=noLaiwcWTQsRgxQbXZNOY0...
- https://dmcdn.f5.com/Telerik.Web.UI.WebResource.axd?_TSM_Hidd...
- https://dmcdn.f5.com/dh/38feabb4423b982d453e692df7218995.js
- https://dmcdn.f5.com/css/portal-dc.css?f5v=165
- https://dmcdn.f5.com/dh/3a85dbf364068aeafaca93dfabb7e0a3.css
Speed test – Javascript
Javascript
Error! Too many javascript files found which slows down the page load on the website.
- https://devcentral.f5.com/TSbd/08b9219406ab200039078242054338af90403425476ad1b7945d3437814b3a2cf8fc0a203a4eafac?type=2
- https://dmcdn.f5.com/resources/Libraries/jQuery/02_02_03/jquery.min.js
- https://dmcdn.f5.com/dh/0a1931578fdbce7005e889de36cd852d.js
- https://dmcdn.f5.com/WebResource.axd?d=noLaiwcWTQsRgxQbXZNOY0tm-7_AUEqyROXumXZpxR2M2i1THMJtY4UEifkWItEip5Uu-yCxbt5ENZh00&t=635792775671809273
- https://dmcdn.f5.com/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a93a6b8ed-f453-4cc5-9080-8017894b33b0%3aea597d4b%3ab25378d2
- https://dmcdn.f5.com/dh/3dd7b39335fb29f2a0d396385d58d521.js
- https://dmcdn.f5.com/js/f5-core.min.js?f5v=143
- https://devcentral.f5.com/DesktopModules/F5/AskQuestion/Scripts/TypeaheadSearch.js?v=143
File size of all javascript files combined
1.23MB
Javascript minifying
You can save 961B (16% compression) on the analysed URL by minifying the javascript files.
Speed test – CSS
CSS
Good! Just a few CSS files are used on this website.
- https://dmcdn.f5.com/css/portal-dc.css?f5v=143
- https://dmcdn.f5.com/dh/7b9bfa7e4c06b8430a3eadda99d5f54d.css
File size of all css files combined
147.55KB
CSS minifying
You can save 151B (16% compression) on the analysed URL by minifying the CSS files.
- By minifying https://dmcdn.f5.com/dh/3a85dbf364068aeafaca93dfabb7e0a3.css you can save 151B (16% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
99.53KB
Gzip compression
Error! By using Gzip you can save 9.2KB (83% compression) on your site.
- By compressing https://devcentral.f5.com/.. /GetMenus?menus=1%2C2%2C3%2C4%2C5&_=9252_... you can save 9.2KB (83% compression rate)
- By compressing https://servedby.flashtalking.com/.. /?ft_referrer=https%3A%2F%2Fdevcentral.f5... you can save 2KB (55% compression rate)
- By compressing https://devcentral.f5.com/images/devcentral.svg you can save 1.1KB (55% compression rate)
Speed test – Browser cache
Number of static resources (image, JS, CSS)
40
Browser cache
The browser cache is not set correctly for all elements.
| URL | Duration |
|---|---|
| https://devcentral.f5.com/.. /dc-solution-security-lg.png | Expiry time is not specified |
| https://www.googletagmanager.com/gtm.js?id=GTM-PPZPQ6 | 15 minutes |
| https://connect.facebook.net/en_US/fbevents.js | 20 minutes |
| https://connect.facebook.net/.. /128687871147784?v=2.8.14&r=stable | 20 minutes |
| https://re.security.f5aas.com/ifr/imageLoader.js | 60 minutes |
| https://re.security.f5aas.com/ifr/loader.js | 60 minutes |
| https://re.security.f5aas.com/ifr/type0.js | 60 minutes |
| https://re.security.f5aas.com/ifr/type12.js | 60 minutes |
| https://re.security.f5aas.com/ifr/type8.js | 60 minutes |
| https://ssl.google-analytics.com/ga.js | 2 hours |
| https://www.google-analytics.com/analytics.js | 2 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=11&w=128&h=128 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=113800&w=128&h=128 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=114104&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=11762&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=123940&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=173733&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=226008&w=128&h=128 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=236154&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=30&w=128&h=128 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=306666&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=33697&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=339523&w=50&h=50 | 7 hours |
| https://devcentral.f5.com/profilepic.ashx?userid=50047&w=128&h=128 | 7 hours |
| https://devcentral.f5.com/.. /08b9219406ab20004a7288463274c48d902c6a02... | 24 hours |
Speed test – Images
File size of all images combined
107.64KB
Image optimisation
You can save 8.1KB (19% compression) by optimising the images below:
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=30&w=128&h=128 you can save 1.2KB (14%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=11&w=128&h=128 you can save 1KB (14%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=113800&w=128&h=128 you can save 1KB (17%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=50047&w=128&h=128 you can save 766B (42%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=226008&w=128&h=128 you can save 672B (15%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=123940&w=50&h=50 you can save 486B (26%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=11762&w=50&h=50 you can save 473B (23%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=306666&w=50&h=50 you can save 470B (23%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=33697&w=50&h=50 you can save 470B (24%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=339523&w=50&h=50 you can save 439B (24%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=236154&w=50&h=50 you can save 402B (25%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=114104&w=50&h=50 you can save 384B (25%) data.
- By lossless compressing the https://devcentral.f5.com/profilepic.ashx?userid=173733&w=50&h=50 you can save 384B (26%) data.
Links
We found a total of 119 different links.
Internal links: 117
External links: 2
Internal links: 117
External links: 2
External links:
| Link text (anchor) | Link strength |
|---|---|
| Learn more | |
| Free Online Training |
Internal links:
Website security
IP
104.219.107.135
External hidden links
Good! No hidden external links found
Looking for eval()
Good! No eval(bas64_decode()) scripts are found
Checking for XSS vulnerability
No XSS vulnerability found
Email encryption
Warning! The website contains at least one unencrypted email address.
Icons
Favicon
Good! The website uses favicon.
Order of Heading elements on mobile by position
- H5 : Solutions, ( 0px from top )
- H5 : Technologies, ( 0px from top )
- H3 : Learn F5 Technologies, Get Answers & Share Community Solutions Join DevCentral, ( 101px from top )
- H4 : Explore: , ( 257px from top )
- H1 : security, ( 321px from top )
- H4 : Articles, ( 669px from top )
- H4 : Have a Security Question or Discussion Topic? , ( 4291px from top )
- H4 : Answers, ( 4454px from top )
- H4 : Downloads and Resources, ( 5378px from top )
- H3 : About DevCentral, ( 6505px from top )
- H4 : Get a Developer Lab license, ( 6691px from top )
- H4 : Contact us - Feedback and Help, ( 6762px from top )
- H4 : Become an MVP, ( 6833px from top )
Typos
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