https://www.progress.com/documentation/sitefinity-cms/152/seo-append-nofollow-attribute-to-untrusted-links
Append nofollow attribute to untrusted links - Sitefinity CMS Security
Append a rel="nofollow" attribute to hyperlinks present in untrusted content. Untrusted content represents comments posted by site visitors.
nofollow attributesitefinity cmsappenduntrustedlinks
https://www.timospecht.de/en-uk/what-is/nofollow/
What is a nofollow link? HTML attribute explained
What are nofollow links and when should they be used? Find out here!
what is anofollowhtmlattributeexplained