http://www.gnu.org/education/education.html

Largest Contentful Paint (LCP) score based on largest content load time is normal (< 4 secs)

All URLs are found and accessible on tags of Web Pages

No redirects or multiple chaining redirects found linking to another page

No blocks on Google bot by <meta> tags detected

Absence of nofollow attribute in <meta> tags of web pages allowed in robots.txt

All externals URLs like images, pdf, etc. found and accessible on tags of the Web Pages

Success. <meta> description tag > 70 characters

Absence of noindex attribute in <meta> tags of Web Pages allowed in robots.txt

Success. <meta> description tag have length < 120 characters

Success. <title> tag is > 20 characters

All <img> (Image) tags found with alt attributes

No missing or blank <title> tag found

All found images are accessible

Largest Contentful Paint (LCP) score based on content load time is normal (less than 2.5 secs)