What does Google say about SEO? /

Official statement

John Mueller reminded us on Twitter that in purely SEO terms, there are no differences between the nofollow, ugc, and sponsored attributes on a link.
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Official statement from (4 years ago)

What you need to understand

Google has officially clarified that the three link attributes - nofollow, ugc (User Generated Content), and sponsored - have no difference in terms of SEO impact. This statement puts an end to much speculation in the SEO community.

These attributes were introduced to allow webmasters to qualify the nature of outbound links. Nofollow is the historical attribute, ugc serves to identify user-generated content (comments, forums), and sponsored signals commercial or advertising links.

From Google's algorithm perspective, these three attributes are treated identically. They primarily serve for internal link classification by Google, but do not transmit PageRank differently.

  • No hierarchy between nofollow, ugc, and sponsored for SEO
  • These attributes allow Google to better understand the context of links
  • They remain hints for the algorithm, not absolute directives
  • Appropriate usage remains a best practice for transparency

SEO Expert opinion

This clarification is consistent with field observations from recent years. Since Google transformed nofollow into a "hint" rather than a strict directive in 2019, the company has been treating these attributes with more flexibility than before.

However, it's important to nuance: even if the direct SEO impact is identical, using the appropriate attribute remains recommended. This helps Google refine its understanding of your link profile and demonstrates your compliance with guidelines. A site that properly marks its sponsored links sends a trust signal.

Warning: Don't confuse "no SEO difference" with "no importance." The absence of attributes on sponsored links can be considered an attempt at manipulation and result in manual penalties. Compliance remains paramount.

Practical impact and recommendations

In summary: Continue using the appropriate attributes to qualify your links, not for a direct SEO advantage, but for compliance and clarity of your link profile.
  • Continue to mark all your sponsored links with the sponsored or nofollow attribute
  • Use ugc for comment sections and user-generated content
  • Don't waste time converting all your existing nofollow to ugc or sponsored
  • Prioritize consistency: choose the attribute most descriptive of the link's nature
  • Document your attribution strategy to maintain consistency over the long term
  • Focus your efforts on obtaining natural links without restrictive attributes
  • Regularly audit your outbound links to verify compliance

The strategic management of link attributes is part of a comprehensive SEO approach that requires a deep understanding of Google guidelines and their constant evolution. This technical expertise, combined with regular auditing of your link profile and compliance implementation, represents a considerable time investment. For businesses looking to secure their netlinking strategy while focusing on their core business, support from a specialized SEO agency provides permanent monitoring of best practices and rigorous implementation of Google's recommendations.

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