When to disavow links: The Complete 2026 Guide

This is the clearest case for disavow. If Google Search Console shows a Manual Actions notification for "Unnatural links to your site," you must identify and disavow the violating links before submitting a reconsideration request.

Google's 2025 manual action data shows link spam remains the second most common manual action after thin content. The reconsideration process requires:

1. A complete link audit identifying all violating links.
2. Good faith efforts to remove links where possible.
3. A disavow file for links that could not be removed.
4. A written reconsideration request explaining your cleanup.

Without disavow, no reconsideration request will succeed. Without a reconsideration request, the manual action stays in place indefinitely.

Since the 2022 Link Spam Update, Google has applied algorithmic link spam detection continuously. Sites that accumulate toxic links may see ranking decline without any manual action notification.

In this scenario, disavow is a recovery tactic, not a requirement. If you have ruled out other causes (content quality, technical SEO, Core Web Vitals) and your backlink profile contains a clear pattern of toxic links, a targeted disavow can help. Run an audit first. If more than 15 percent of your referring domains are flagged as toxic by tools like Ahrefs or Semrush, disavow is worth pursuing.

If a competitor builds spam links to your site, you need to act. Google's 2025 guidance confirms that its algorithms are designed to ignore artificial link spam, but a sustained attack with thousands of toxic links can still cause temporary ranking fluctuation.

When you detect a negative SEO attack:

1. Document the attack with screenshots and link lists.
2. Remove any access the attacker had (compromised accounts).
3. Disavow the attack links in bulk at the domain level.
4. File a spam report via Google Search Central.
5. Monitor GSC for 30 days.

Do not wait. Prompt disavow of negative SEO links limits the window of algorithmic confusion.

Many sites inherit link profiles from agency work or outdated SEO tactics. Paid link networks, large scale directory submissions, and article syndication from 2018 2022 frequently leave behind traces that become liabilities as Google's spam detection improves.

If your site has a history of aggressive link building, a prophylactic disavow of clearly toxic domains can prevent future issues. This is the most controversial use case. Google has stated that disavowing links you believe are low quality is unnecessary unless your site has a manual action. However, in practice, sites that proactively clean their profiles before algorithm updates tend to recover faster if issues arise later.

Do not disavow links in these situations:

• Natural editorial links with varied anchor text. Even from low DA domains.
• Nofollow, UGC, or sponsored links. Google already ignores them.
• Links from sites you own. Remove or redirect instead.
• Competitor links pointing to them. You cannot disavow another site's links.
• Before a manual action or confirmed algorithmic penalty. Prophylactic disavow without a problem is unnecessary.

Is there a manual action for link spam?
  -> YES: Disavow immediately.
  -> NO: Is ranking down and link profile >15% toxic?
    -> YES: Disavow after audit.
    -> NO: Is there a confirmed negative SEO attack?
      -> YES: Disavow attack links.
      -> NO: Monitor. Do not disavow.

Disavow is a powerful tool that becomes a liability when misused. Apply the framework above before touching the Disavow Tool. If you do not have a manual action, do not have a ranking problem, and do not have clear evidence of toxicity, the right move is to not disavow. Google's algorithms handle most low quality links on their own.