What is a nofollow link?
Nofollow is a link attribute (rel="nofollow") that tells search engines the linking site does not vouch for the destination. Google introduced it in 2005 to fight comment spam. Since 2019 Google treats nofollow as a hint rather than a directive, alongside two more specific attributes: rel="sponsored" for paid links and rel="ugc" for user-generated content.
Do nofollow links have SEO value?
Nofollow links generally do not pass PageRank, which is why link builders distinguish followed from nofollowed placements. But a healthy backlink profile contains plenty of nofollow links; a profile that is 100% followed looks manufactured. Nofollow links from high-traffic pages also drive referral visitors, brand discovery, and the co-citation signals AI systems read.
Internally, nofollow is almost never the right tool. Using it to sculpt PageRank inside your own site wastes link equity rather than redirecting it. The legitimate internal uses are rare edge cases like login pages you cannot handle any other way.
Example
Example
A product mention in a Wikipedia article is nofollowed and passes no PageRank, yet it remains one of the most valuable mentions a brand can earn: AI systems and entity extraction pipelines treat Wikipedia presence as a strong trust signal.
Frequently asked questions
Do nofollow links help SEO at all?
Indirectly, yes. They drive referral traffic, diversify your link profile, and create brand mentions that AI systems and entity recognition read, even though they typically pass no PageRank.
What is the difference between nofollow, sponsored, and ugc?
All three mark links a site does not editorially vouch for. sponsored is for paid placements, ugc for user-generated content like comments, and nofollow is the general-purpose hint.