Backlinks play an important role in SEO, but not all links are helpful. In some cases, links from spammy or low-quality websites can do more harm than good. These are commonly referred to as toxic backlinks.
While Google is usually good at ignoring bad links on its own, there are situations where reviewing, removing, or disavowing them is necessary—especially if your site has received a manual action or has a history of aggressive link building.
This guide walks you through how to identify toxic backlinks, when to remove them, and how to disavow them correctly if needed.
What Are Toxic Backlinks
Toxic backlinks are links coming from websites that appear manipulative, spammy, or completely irrelevant to your site. These links often come from link farms, automated blog networks, scraped content sites, or domains created solely to manipulate rankings.
Some common red flags include:
- Unnatural or keyword-stuffed anchor text
- Links from websites unrelated to your industry
- Domains with very low authority or no real content
- Sites that exist purely to host outbound links
Over time, a large number of these links can weaken the overall quality of your backlink profile and potentially impact your search visibility.
How to Identify Toxic Backlinks
Start by reviewing your backlink profile using tools such as Ubersuggest or Google Search Console. These tools allow you to export a list of websites linking to you and analyze patterns across your links.
Pay attention to things like:
- Sudden spikes in backlinks
- Repeated links from the same low-quality domains
- Suspicious anchor text that doesn’t match your brand or content
Automated tools are helpful, but they’re not perfect. It’s always a good idea to manually review questionable links to determine whether they’re truly harmful or simply irrelevant.
Removing Toxic Backlinks Manually
Before disavowing links, Google recommends attempting manual removal whenever possible.
- Visit the website linking to you and look for contact information, such as an email address or contact form.
- Send a polite request asking the site owner to remove the link or apply a nofollow attribute.
- Keep a record of your outreach attempts, including dates and responses.
Not all site owners will respond, and that’s okay. The goal is to make a reasonable effort before moving on to disavowing.
When You Should Disavow Links
Disavowing links should be treated as a last resort. In many cases, Google simply ignores low-quality or irrelevant backlinks automatically.
Disavowing is typically recommended only if:
- Your site has received a manual action for unnatural links
- You have a significant number of clearly spammy or manipulative backlinks
- You’re unable to remove those links manually despite outreach efforts
Avoid disavowing links just because they look low-quality. Removing or disavowing legitimate links by mistake can negatively impact your rankings.
How to Create a Disavow File
If disavowing is necessary, you’ll need to create a plain text (.txt) file listing the links or domains you want Google to ignore.
Here are some best practices:
- Use UTF-8 encoding and a .txt format
- Add one URL or domain per line
- Use domain: when disavowing an entire website
- Use comments (starting with #) to document notes or reasons
Example:
# Spammy website
domain:example-spamsite.com
# Specific harmful URL
http://example-spamsite.com/bad-page.htmlDisavowing entire domains is usually recommended when a site is clearly spammy rather than listing individual URLs.
Submitting the Disavow File in Google Search Console
Once your file is ready, sign in to Google Search Console and upload it using the Disavow Links tool. After submission, Google will process the file over time—this can take several weeks or even months.
There’s no immediate confirmation or ranking change, so patience is important.
What to Do After Disavowing Links
After submitting your disavow file, continue monitoring your site’s performance in Google Search Console and analytics tools. Keep an eye on:
- Search traffic and rankings
- New backlinks that may appear over time
Only update your disavow file if new, clearly harmful links are discovered. Frequent or unnecessary changes aren’t recommended.
Cleaning up toxic backlinks can help protect your site’s long-term SEO health, especially if you’re dealing with a manual action or a history of spammy links. That said, disavowing should be done carefully and only when there’s clear evidence it’s needed.
If you’re unsure whether certain backlinks are harmful, contact our support by clicking on the "Help" button.