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Official statement

The same Frédéric Dubut explained at the recent SMX Advanced event that, while using the disavow file was almost useless for Google, he still recommended its use for Bing to report links considered toxic...
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Official statement from (6 years ago)

What you need to understand

The disavow file allows webmasters to report incoming links considered toxic or unnatural to search engines. This statement reveals a major divergence between the two main search engines.

At Google, the usefulness of the disavow file has been progressively minimized over the years. The search engine claims to be capable of automatically identifying and ignoring poor-quality links, making manual intervention almost useless in the majority of cases.

In contrast, Bing actively maintains its disavow system since 2012 and still encourages its use. This difference in approach is explained by less sophisticated algorithms for detecting toxic links or a different philosophy in handling negative signals.

  • Google considers the disavow file largely obsolete
  • Bing actively recommends its use to report toxic links
  • Both engines have different algorithmic approaches to handling questionable backlinks
  • The disavow file remains available on both platforms despite these differences

SEO Expert opinion

This statement perfectly reflects what I've been observing for several years. At Google, I now only recommend the disavow file in very specific cases: documented manual penalties, massive and recent negative SEO attacks, or pre-acquisition audits to legally secure a site purchase.

For Bing, the situation is different. The search engine represents approximately 3 to 8% of traffic depending on sectors, but this share can be significant in certain B2B niches or demographics. If you identify a genuinely problematic link profile, disavowing on Bing remains a relevant practice.

Warning: The most common mistake is disavowing too broadly out of excessive caution. A poorly targeted disavow can eliminate legitimate links and harm your SEO, particularly on Bing which still gives weight to these manual signals.

The real question isn't "should I disavow" but "which links truly deserve disavowal". A weak or irrelevant link isn't necessarily toxic. Focus on clearly manipulative links: identifiable link networks, massive over-optimized anchors, penalized sites, or characterized spam.

Practical impact and recommendations

  • For Google: Only use the disavow file in case of confirmed manual penalty or documented negative SEO attack
  • For Bing: Maintain an updated disavow file if you actively target this search engine and identify clearly toxic links
  • Always prioritize direct removal of problematic links by contacting webmasters rather than disavowal
  • Conduct a quarterly backlink audit to identify new suspicious links, particularly if you're in a competitive sector
  • Document each disavow decision with the precise reason: this will prevent you from disavowing legitimate links by mistake
  • Never disavow preemptively or "just in case": the negative impact can outweigh the supposed benefit
  • Use backlink analysis tools to assess real toxicity before disavowing, without blindly trusting automatic scores
  • If your site has a history of aggressive link building, focus on dilution through acquiring quality links rather than massive disavowal
In summary: The disavow file has become a niche tool, primarily useful for Bing and for very specific Google situations. Fine analysis of a backlink profile, precise identification of genuinely toxic links, and appropriate disavow strategy require deep expertise and updated knowledge of each search engine's signals. Given the complexity of these decisions and the risks of errors that can durably impact your visibility, support from a specialized SEO agency can prove wise to establish a tailored and secure backlink management strategy.
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