What is a toxic link?

A toxic link is a backlink from a low-quality source: spam sites, link farms, auto-generated content or unrelated foreign sites. "Toxic" is not an official Google term; it's based on a score that tools assign from spam signals.

#Why it matters

• Google ignores most spam links on its own, so individual toxic links usually don't drag your rankings down.
• The risk grows if you bought the links or joined a link network; that can lead to a manual action.
• A rising toxic share may point to a negative SEO attack or leftovers from an old agency, so it's worth watching.

#Where you see it in SEOAsist

• Backlinks → Toxic lists links with a DataForSEO spam score of 50 or more. The Toxic card on Overview uses the same threshold.
• The same tab holds the Google disavow file card: use Disavow on a row to add its domain, then get the file with Download disavow file.
• SEO analysis shows the toxic backlink count as a finding in the authority dimension.

More: Backlink sync, Disavow.

#Example

#Common mistakes

• Panic-disavowing every link with a high spam score. The score is an estimate; open the source and look yourself.
• Assuming toxic links caused a ranking drop; content or technical problems are far more common causes.
• Trying to "clean up" links you bought only by disavowing them; ask for removal where you can.