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77
100
Michael Kerrisk - man7.org
https://man7.org/
2 high issues
6.1%
4 medium issues
12.1%
5 low issues
15.2%
22 tests passed
66.7%
0.38 seconds
1.51 kB
5 resources
Secure
Seo
Title
The title tag is perfect.
Michael Kerrisk - man7.org
Meta description
The meta description tag is missing or empty.
Headings
Only one h1 tag should be present on the webpage.
  1. Michael Kerriskman7.org
  2. Training courses
  3. The Linux Programming Interface
  4. Blog
  5. Articles
  6. Conference presentations
  7. The man-pages project
  8. Online manual pages
  9. About
  10. Contact and Impressum
Content keywords
The content has relevant keywords.
michaelorg
Image keywords
All images have alt attributes set.
SEO friendly URL
The URL is SEO friendly.
https://man7.org/
404 page
The website has 404 error pages.
https://man7.org/404-8e4515f7b883bc5bc7a64ff5a3f51271
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The number of links on the webpage is okay.
Language
The webpage has the language declared.
en-US
Favicon
The webpage has a favicon.
https://man7.org/koru-icon.png
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.38 seconds.
Page size
The size of the HTML webpage is 1,513.00.
HTTP requests
There are fewer than 5 HTTP requests on the webpage.
  1. https://www.statcounter.com/counter/counter.js
  1. https://man7.org/style.css
  1. https://man7.org/photos/mtk_2021_200.jpg
  2. https://man7.org/tlpi/cover/TLPI-front-cover-small-256.png
  3. https://c.statcounter.com/6129341/0/1192a2fb/1/
Image format
There are 3 images that are not using the AVIF, WebP format.
  1. https://man7.org/photos/mtk_2021_200.jpg
  2. https://man7.org/tlpi/cover/TLPI-front-cover-small-256.png
  3. https://c.statcounter.com/6129341/0/1192a2fb/1/
JavaScript defer
The are 1 javascript resources without the defer attribute.
  1. https://www.statcounter.com/counter/counter.js
DOM size
The DOM size is optimal.
The HTML file has 73 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://man7.org/ DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
Apache/2.4.29 (Ubuntu)
Unsafe cross-origin links
The webpage has 1 unsafe cross-origin links.
Plaintext email
The webpage does not contain any plaintext emails.
Miscellaneous
Structured data
There are no structured data tags on the webpage.
Meta viewport
The webpage has a meta viewport tag set.
width=device-width, initial-scale=1
Character set
The webpage has a charset value set.
utf-8
Sitemap
No sitemaps found.
Social
The webpage does not contain any social links.
Content length
The are less than 500 words on the webpage.
The webpage has 83 words.
Text to HTML ratio
The text to HTML ratio is 13%.
Inline CSS
The webpage contains inline CSS code.
  1. width: 100%;
  2. vertical-align: top; width: 35%
  3. width: 100%; margin-right: 0px;
  4. text-align: right; vertical-align: top;
  5. color:#404040
  6. text-align: right; vertical-align: top;
  7. padding:20px;
  8. text-align: right; vertical-align: top;
  9. padding:20px;
  10. width: 1px; background-color: #808080;
  11. text-align: left;
Deprecated HTML
There are no deprecated HTML tags on the webpage.