For most sites in 2026, leave them alone, because Google says it ignores the vast majority of spammy and low-quality links automatically, which makes routine disavowing busywork against a problem the engine already handles. The narrow exception is real and worth knowing: reserve the disavow tool for a confirmed manual action citing unnatural links, or a documented negative-SEO pattern you can actually demonstrate. The default is do nothing, and because this is exactly the kind of guidance that has shifted over the years, verify it against current Google documentation when you act.

The reason the default flipped is that the engine got good at discounting junk on its own. Random spammy links pointing at your site are, in the normal case, simply not counted rather than counted against you, so disavowing them is removing credit for links that were already contributing nothing. The old hygiene ritual of periodically scanning a “toxic links” report from a third-party tool and disavowing whatever it flagged is treating those tool scores as if they were the engine’s judgment, which they are not. Most of what such tools call toxic is already being ignored.

The exception is where disavow still earns its place. If you have received a manual action that specifically names unnatural inbound links, disavowing is part of the documented path to resolving it. And if you can genuinely show a deliberate negative-SEO campaign, a real flood of harmful links aimed at your site, disavow is the tool built for that case. Both are confirmed, specific situations, not a vague worry that some links look bad.

So the verdict, dated to 2026 and flagged for re-checking: default to leaving toxic links alone because they are mostly ignored already, and pick up the disavow tool only for a confirmed manual action or a demonstrable negative-SEO pattern.

Stop running periodic disavow sweeps off a toxicity score, and instead reserve the tool for the two real triggers, checking Google’s current guidance on disavow before you submit anything so you are acting on the present policy rather than an outdated habit.