How to Disavow Backlinks: When, Why, and How to Use Google's Disavow Tool

Google's Disavow Links tool allows you to tell Google to ignore specific backlinks when assessing your site's ranking signals. It's a powerful but misunderstood tool — used correctly, it can protect against negative SEO attacks and recover from manual penalties. Used incorrectly, it can inadvertently disavow valuable links and harm your rankings. This guide covers when disavowing is actually necessary, how to build a proper disavow file, and the common mistakes to avoid.

What Is the Disavow Tool?

The Disavow Links tool, available in Google Search Console, lets you submit a list of URLs or domains whose links you want Google to ignore. Once submitted, Google will typically stop counting those links in your site's ranking calculations. The disavow file persists until you update or remove it.

This tool exists because Google can't always algorithmically distinguish between links you created (potentially manipulative) vs. links you have no control over (competitor negative SEO, automated spam). The disavow file is your mechanism to tell Google "I know these links are bad, and I'm disowning them."

When Should You Use the Disavow Tool?

Manual Penalty for Unnatural Links

If you receive a Google manual action notification in GSC for "unnatural links to your site," you must address the bad links — either by removing them or disavowing them — before submitting a reconsideration request. This is the primary use case where disavowing is clearly necessary.

Algorithmic Penalty Recovery

If your site lost significant traffic after a Google algorithm update (particularly Penguin updates, which target manipulative link schemes), a disavow file can help. However, disavowing should be paired with other cleanup work — improving content quality, removing or redirecting thin pages.

Negative SEO Attack

Competitors can point thousands of spammy links at your site to try to trigger a penalty — this is called negative SEO. While Google claims its algorithms are largely resistant to this, sites with weaker baseline authority can be affected. Regular backlink monitoring helps you catch and disavow negative SEO attempts early.

Proactive Cleanup of Legacy Spam

If your site has a history of manipulative link building (link farms, PBNs, paid links from irrelevant sites), proactively disavowing this history can reduce penalty risk and improve the quality of your link profile before it causes problems.

When NOT to Use the Disavow Tool

Google's John Mueller and Gary Illyes have repeatedly cautioned against overusing the disavow tool:

• Don't disavow links you didn't build and that aren't causing problems. Most spam backlinks are algorithmically ignored by Google already. Aggressively disavowing everything flagged by a tool as "toxic" can disavow valuable links caught in the false positive net.
• Don't use disavow as a substitute for link removal. For links from sites you have relationships with, attempt to get them removed first. Disavow is for links you genuinely can't control.
• Don't disavow based solely on low Domain Authority scores. A low-DA link is not necessarily harmful. Most irrelevant or low-quality links are just ignored, not penalizing. Disavowing everything below DA 20 can hurt your profile by disavowing legitimate links.

Identifying Links to Disavow

Step 1: Export Your Complete Backlink Profile

Pull your full backlink report from two sources (different databases catch different links):

• Ahrefs Site Explorer → Backlinks → Export all
• Semrush Backlink Analytics → Export all
• Google Search Console → Links → Export all external links

Step 2: Identify Potentially Harmful Links

Characteristics of genuinely problematic links:

• Links from known link farms or link networks (same template, low-quality content)
• Links from Private Blog Networks (multiple domains with identical or templated content pointing to the same target sites)
• Links from unrelated foreign language sites (a Denver plumber with 200 links from Russian gambling sites)
• Links from sites that exist solely to sell links (visible "advertise here" / "buy links" messaging)
• Sitewide links (appearing in footer or sidebar across thousands of pages of an irrelevant site)
• Exact-match anchor text over-optimization (100 links with anchor text "buy cheap backlinks" all from suspicious sites)
• Hacked sites or sites with malware

Step 3: Manually Review Flagged Links

Never disavow a link without visiting the source. Many "toxic" flags from automated tools are false positives — legitimate news sites, forums, or industry directories that automated tools misclassify. Visit the source page and ask: would a human editor choose to link here? If yes, don't disavow.

Step 4: Attempt Link Removal First

For links from sites where you can contact the owner (especially if you built them), attempt to have them removed before disavowing. Document removal attempts — if you have a manual penalty, showing removal outreach demonstrates good faith to Google's review team.

Building the Disavow File

The disavow file is a plain text file uploaded to Google Search Console. Format:

# Disavow file for revealrank.com
# Last updated: 2026-08-19

# Disavow specific URLs
https://spamsite.com/page-about-your-site/
https://anotherspamsite.com/links/revealrank

# Disavow entire domains (recommended for site-wide spam)
domain:linkfarm1.com
domain:pbn-network.com
domain:spammy-directory.ru

Best practices for the disavow file:

• Use domain-level disavows for link farms, PBNs, and sites where all links are spam
• Use URL-level disavows for specific pages on otherwise legitimate sites
• Keep the file organized with comments explaining why domains are disavowed
• Don't include URLs of your own site (that's not how it works)
• One domain or URL per line, no spaces

Submitting the Disavow File

1. Save the file as a .txt file (UTF-8 encoding)
2. Go to the Google Disavow Links tool: search.google.com/search-console/disavow-links
3. Select your property from the dropdown
4. Click "Upload Disavow List" and select your file
5. Confirm the upload

The file takes effect within a few weeks as Googlebot recrawls and reprocesses the disavowed links. If you're submitting alongside a reconsideration request for a manual penalty, include documentation of link removal attempts.

Maintaining Your Disavow File

The disavow file is a living document:

• Add newly discovered spam links as you find them through monthly backlink monitoring
• Remove entries if a disavowed domain improves quality (rare, but possible)
• Keep a log of when you added each entry and why — this is valuable if you're working with multiple team members or agencies

When switching SEO agencies or platforms, always transfer your disavow file. Many sites have had their disavow files deleted by accident during agency transitions, causing previously-disavowed links to regain negative influence.

Disavow Tool Limitations

• It takes weeks to months to see effects — it's not a quick fix
• Google processes it over time as it recrawls links, not immediately
• For manual penalties, disavow alone doesn't lift the penalty — you must also submit a reconsideration request
• It doesn't remove links from other search engines (Bing has its own backlink disavow tool)

Backlink management is an ongoing discipline. Pair the disavow tool with regular backlink monitoring and proactive link building through legitimate channels. Learn more about identifying and handling toxic backlinks, and see how proactive link building strategies can build the positive authority that makes your site more resilient to negative influences.