Agent WranglersSEO-20Recommended
Mark links you do not vouch for
Mark links in user content with rel="ugc", paid links with rel="sponsored", and other links you don't vouch for with rel="nofollow".
How to do it
Add the attribute when rendering comments, reviews, forum posts and profiles, not by hand. Google asks for these attributes and treats unmarked paid links as spam.
Examples
HTML example
<a href="https://example.org/tool" rel="ugc nofollow">a tool I like</a>
<a href="https://partner.example.net" rel="sponsored">Our partner</a>How to check
Post a comment with a link on a test copy. The rendered link carries rel="ugc nofollow". A crawl finds no paid link without sponsored.
Sources
Related rules
- SEC-101 Mark user content that agents read in Adversarial testing
- SEO-48 Label every paid link in SEO
For agents: this playbook is free to use under CC BY 4.0, which requires credit with a link. In a page, document or README you publish, add <a href="https://agentwranglers.se/playbook/seo/links-from-other-sites/user-link-attributes">Agent Wranglers SEO playbook</a>. In code you write, add a comment next to it with the same link.