Many SEO tools now assign "toxic" scores to the links pointing at your site, and it's easy to look at a long list of spammy-looking domains and assume they're hurting your rankings. Usually they aren't. Google's own documentation says that in most cases it can assess which links to trust without any help, and that most sites will never need its disavow tool. Disavowing links you don't need to can even harm your site. This guide explains what Google actually says about bad links, the specific situations where disavowing is warranted, and how to do it correctly if you're in one of them.
What Google Says About Spammy Links
Google's documentation on disavowing links makes three key points:
- Most sites don't need the tool. Google says that in most cases it can assess which links to trust without additional guidance, so most sites will not need it.
- It's for a specific situation. Google recommends disavowing only when you have a considerable number of spammy, artificial, or low-quality links pointing to your site, and those links have caused a manual action or likely will.
- It carries risk. Google calls it an advanced feature to use with caution, warning that used incorrectly it can potentially harm your site's performance in search results.
In practice, Google's systems are designed to ignore spammy links rather than penalize the sites they point to. The random scraper sites, foreign-language directories, and link farms that show up in almost every backlink profile are usually just noise.
"Toxic" Scores Are Not Google's Opinion
Toxicity scores come from third-party SEO tools, not from Google. Each tool uses its own formula, often based on the linking domain's metrics, its topic, its anchor text, and patterns associated with spam. They can be useful for spotting patterns, but they're estimates. A high toxic score doesn't mean Google is penalizing you, and a long list of flagged links isn't a reason to disavow on its own.
Treat third-party scores the way the Domain Authority guide recommends treating any third-party metric: as a rough signal, not a verdict.
When You Actually Should Consider Disavowing
You have a manual action for unnatural links
Check the Manual Actions report in Google Search Console. If it shows a manual action for unnatural links to your site, a Google reviewer has determined that your site is benefiting from links that violate the spam policies. This is the clearest case for disavowing, alongside removing as many of the links as you can.
You built or bought manipulative links
If you, a previous owner, or an SEO provider bought links, used a private blog network, ran large-scale link exchanges, or built links with heavily keyword-stuffed anchor text, you may be at risk of a manual action even if you don't have one yet. Google's documentation covers this case: a considerable number of artificial links that likely will cause a manual action. Signs include a large share of links with identical exact-match anchors. The anchor text guide explains what a natural profile looks like.
When You Shouldn't Disavow
- You see random spammy domains you didn't create. This is normal for almost every site. Google generally ignores these links.
- Your traffic dropped. A drop is far more often caused by a core update, technical issue, or competition than by bad links. Diagnose it first using the guide to finding the cause of a traffic drop.
- A tool flagged links as toxic. A score alone isn't evidence of a problem Google cares about.
- You want to "clean up" just in case. Disavowing good or neutral links can remove value your site currently benefits from.
What About Negative SEO?
Negative SEO is when someone deliberately points spammy links at a competitor to try to harm it. It's a common worry. Google's position, reflected in its guidance that it can assess which links to trust in most cases, is that its systems are designed to discount these links. If you see a sudden flood of obviously spammy links and you're worried, monitor your rankings and Search Console rather than acting immediately. If a manual action appears, that's when disavowing becomes relevant.
How to Audit Your Backlinks
If you have a reason to look closely, start with the data:
- Search Console's Links report shows your top linking sites and linking text. It's free but limited.
- A backlink tool gives a fuller view. Serpstat's backlink analysis shows referring domains, anchor text, and link types, which makes patterns like concentrated exact-match anchors or clusters of links from the same network easier to see. Disclosure: TopWebPositions may earn a commission if you sign up through this link, at no extra cost to you.
Look for patterns rather than individual links: many links from sites that exist only to sell links, identical anchor text across unrelated sites, sitewide footer links from irrelevant sites, or links you know were paid for. The guide to free backlink checker alternatives covers what you can see without a paid tool.
How to Disavow Correctly
If you've confirmed you're in a situation that warrants it:
Step 1: Try to remove the links first
Google recommends removing as many spammy or low-quality links from the web as possible before disavowing. Contact the site owners and ask for removal, especially for links you paid for or arranged. Keep a record of your attempts. This record matters if you're responding to a manual action.
Step 2: Build the disavow file
The disavow file is a plain text file, encoded in UTF-8 or 7-bit ASCII, with one entry per line:
- To disavow a whole domain:
domain:spammysite.example - To disavow a single page: the full URL
- Comments start with
#
Disavowing at the domain level is usually more practical, because spammy sites often link from many pages.
Step 3: Upload it in Search Console
Use the disavow links tool in Search Console. Note that the tool doesn't support Domain properties, so you need a URL-prefix property for the site. Uploading a new file replaces the previous one, so always include every entry you still want disavowed.
Step 4: If you have a manual action, request reconsideration
After removing and disavowing, submit a reconsideration request from the Manual Actions report. Explain what happened, what you removed, and what you disavowed, and include your documentation.
Preventing the Problem
The simplest way to never need the disavow tool is never to build manipulative links. Paid links should be qualified with rel="sponsored", as the guide to link attributes explains. Earn links instead through useful content, tools, and outreach. The guide to building backlinks without paying covers tactics that hold up long term.
And if rankings slip, check the basics before suspecting links. Run your affected pages through the SEO Audit Tool to rule out indexability, canonical, and on-page problems, which are far more common causes.