Do you really need to disavow nofollow, UGC, or sponsored links?

Why is Google making this statement now?

This clarification from John Mueller comes at a time when many SEOs are still spending considerable time disavowing all sorts of suspicious links, including those that already bear restrictive attributes. The confusion stems from the fact that the disavow tool has been around for years, but its real scope remains unclear for many.

Google introduced the rel="ugc" (User Generated Content) and rel="sponsored" attributes in September 2019, alongside the traditional nofollow. These tags allow for a more precise qualification of a link's nature — user content, paid partnership, or simply a non-endorsement indication. The search engine treats these three attributes similarly: they prevent PageRank transfer and signal that the link does not constitute a natural editorial vote.

What happens technically with these attributes?

When Googlebot encounters a link marked nofollow, UGC, or sponsored, it indexes the presence of the link but derives no ranking benefit for the target page. PageRank does not flow. The link exists in the web graph but does not influence the authority of the page it points to.

The disavow tool serves to explicitly request Google to ignore certain backlinks when calculating your profile. Let's be honest: using this tool on links already neutralized by their attributes is akin to locking a door that is already locked. Google clearly states it — it's a waste of time.

In what cases does this rule really apply?

This recommendation applies to all environments where these attributes are correctly implemented: forums, blog comments, widgets, declared link exchanges, sponsored content, and paid directories that play by the rules. If the webmaster has done their job and correctly marked these links, Google already treats them as links with no SEO value.

The problem arises when a site claims to use these attributes but implements them poorly — or when a sponsored link remains dofollow despite the guidelines. In that case, disavowing may make sense. But if the attribute is present and correctly placed in the source code, passing that link to the disavow.txt file achieves absolutely nothing.

• The nofollow, UGC, and sponsored attributes already block PageRank — Google has treated them equivalently since 2019.
• The disavow tool is meant to neutralize toxic dofollow links that could harm your backlink profile.
• Always check the source code for the actual presence of the attribute before wasting time disavowing.
• Focus your backlink audits on dofollow links from spammy sites, link networks, or irrelevant content.
• Google has no reason to penalize a site for nofollow/UGC/sponsored links that it already ignores in its calculations.

Is this statement consistent with on-the-ground observations?

Yes, and it's even one of the few points where Google is perfectly clear. Tests and field observations confirm that nofollow links have never triggered a Penguin penalty or manual action. SEOs who massively disavow these links often do so out of excessive caution, or due to a misunderstanding of the algorithm's actual functioning.

That said, some edge cases do exist. Sites have seen their profiles clean up after mass disavowing, including nofollow — but the improvement likely came from the toxic dofollow links disavowed at the same time, not from the nofollow links. Correlation does not imply causation.

What nuances should be added to this rule?

First point: Google says these attributes prevent PageRank transmission, but it has never claimed they prevent all forms of analysis. The engine can crawl these links to discover new pages, analyze semantic context, or map site networks. Nofollow does not equate to total invisibility.

Second nuance: some third-party SEO tools count these links in their authority metrics (DA, DR, etc.). A profile filled with nofollow links from spam sites can present a poor image in Ahrefs or Majestic, even if Google ignores them. This does not directly impact your SEO, but it can influence potential partners who scrutinize these metrics before exchanging links. [To verify]: the indirect reputational impact should be considered in a comprehensive strategy.

In what cases does this rule not apply?

If a link has the attribute but the source site is technically misconfigured (JavaScript removing the attribute at runtime, contradictory double implementation, redirection losing the attribute), then the link may become active again from Google's perspective. In this case, the disavow becomes pertinent — but you must first check the final rendering with the Inspect URL tool in Search Console.

Another case: a nofollow link on a site that is part of a massive spam network detected by Google. Even if the link does not transmit PageRank, your presence in this network could theoretically play a role in broader behavioral analysis. It’s speculative, but some SEOs prefer to sever all ties with these toxic ecosystems. Once again, this is on a case-by-case basis, not a hard and fast rule.

What should you practically do with your backlink profile?

First step: audit your current disavow file if you have one. How many lines concern nofollow, UGC, or sponsored links? If the answer exceeds 20%, you're wasting time maintaining this file for no reason. Clean it up by removing these entries — they have no effect and unnecessarily clutter your management.

Second action: refocus your backlink audits on real risks. Use tools like Ahrefs, SEMrush, or Majestic to filter only dofollow links from low-authority sites, off-topic content, or suspicious domains. This is where the links that may deserve a disavow are found, not in UGC-marked WordPress comments.

What mistakes should you avoid in managing your link profile?

Classic mistake: disavowing any link from an unknown domain by reflex. Many SEOs apply a "when in doubt, I disavow" logic, which can lead to rejecting legitimate links simply because they come from small sites. Google has emphasized that the disavow tool should be used sparingly — the engine is mature enough to ignore the majority of spam by itself.

Another trap: believing that a high volume of nofollow links harms your profile. This is false. A healthy site can have 80% of nofollow links from social shares, comments, mentions in protected articles — no problem at all. What matters is the quality and relevance of dofollow links, not the overall ratio.

How can you verify that your disavow strategy is optimal?

Regularly review your Search Console (quarterly, for example) to identify new suspicious dofollow backlinks. Cross-reference this list with a third-party tool to assess the quality of the source domains. If a dofollow link comes from a clearly spammy site, with automated content or an absurd outgoing link profile, then yes — add it to the disavow.

For nofollow/UGC/sponsored links, just monitor the context. If a nofollow link appears on a site that seems problematic for other reasons (illegal content, toxic association), you might consider attempting to contact for its removal — but do not waste disavow credit on it.

• Clean your disavow.txt file by removing all lines concerning nofollow, UGC, or sponsored links.
• Filter your backlink audits to target only dofollow links from potentially toxic sources.
• Check the source code for the actual presence of the attribute before any disavow decision.
• Automate a quarterly alert in your SEO tool to detect new suspicious dofollow backlinks.
• Only disavow if you have a set of indicators: spam domain + dofollow link + over-optimized anchor + no thematic relevance.
• Document each disavow with the specific reason, so that you can revisit your strategy if the guidelines evolve.