Disavow

The disavow tool is a file submission method in Google Search Console that lets site owners declare they don't endorse certain backlinks. Google uses this signal to reduce or eliminate the ranking impact of links you've identified as problematic—typically those acquired through hacking, manipulative campaigns, or third-party actions beyond your control.

Disavow matters because toxic or spammy backlinks can trigger manual penalties or algorithmic spam detection. If a site links to yours as part of a private blog network scheme, or if your site was hacked and used for link injection, disavowing those links helps protect your rankings. It's especially useful when you can't remove the links yourself.

In practice, disavow works through a plain-text file uploaded to Search Console listing URLs or entire domains to ignore. Most SEOs treat it as a last resort after attempting manual removal, since over-disavowing legitimate links or misidentifying threats can backfire. Google has stated it uses disavow data as one signal among many, not as an absolute command.