Follow / Nofollow Link Checker

This tool fetches a page once and reads the rel attribute on every link it finds, classifying each as follow (the default, when no rel value is present) or nofollow, sponsored, or ugc, the three values that tell search engines a link isn't meant to be treated as a vote of confidence. Links are also split by internal versus external, since the two most common real questions are how many outbound links pass credit to other sites, and whether a specific backlink pointing back to your own site was marked follow or nofollow by the site linking to you. Only the raw HTML returned by the server is read, so a rel attribute added only after client-side JavaScript runs would not be seen here.

It's worth knowing that Google changed how it treats these values in 2019: before then, nofollow (and the sponsored/ugc values added at the same time) were an absolute directive, Google would never follow the link or pass any ranking signal through it. Since September 2019, Google treats all three as hints rather than directives, meaning Google may still choose to crawl a nofollow link and, at its own discretion, take it into account as one signal among many, though it still won't be treated the same as an unmarked, fully-vouched-for link. The practical guidance hasn't really changed because of this: mark paid links sponsored, mark untrusted user content ugc, and use plain nofollow for anything else you don't want to vouch for, this tool still shows you exactly which links carry which marking either way.