By Mark Wood, owner of Mark Wood Official. Last updated: November 11, 2026.
Toxic backlinks are links from spammy, manipulative or very low-quality sites that may harm your site’s reputation. The good news is that most websites do not need to disavow them. Google says it can usually work out which links to trust on its own, and it recommends the disavow tool only when you have many bad links and they have caused, or are likely to cause, a manual action. This guide shows how to find risky links, how to decide, and what to do step by step.
Key Takeaways
- “Toxic” is an industry word, not a Google term. Tool scores for toxicity are opinions, not Google verdicts.
- A few spammy links are normal for almost every website.
- Check Search Console for a manual action first. That is the clearest signal.
- Try to get bad links removed before you disavow them.
- Disavowing good links by mistake can hurt you, so do it carefully and only when needed.
What Are Toxic Backlinks?
People call a backlink “toxic” when it comes from a site or pattern that looks manipulative. Common examples are links from private blog networks (PBNs), links from unrelated gambling, adult or foreign-language spam sites, and large batches of links built only to influence rankings. Paid links that pass ranking credit without a sponsored or nofollow tag can also break Google’s rules.
SEO tools show “toxic” or “spam” scores, but these are the tool’s own estimates. For example, Moz’s Spam Score is the percentage of similar sites that Google has penalized or banned, which makes it a correlation, not a penalty. Moz groups scores into low (1 to 30 percent), medium (31 to 60 percent) and high (61 to 100 percent).
Do You Really Need to Worry?
Usually not. Google’s disavow help page says that in most cases Google can assess which links to trust without extra guidance, so most sites will not need the tool. It says to disavow only if both of these are true: 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. You can read the full text in Google’s disavow links help page.
Google’s spokespeople have also said many times that most site owners should never need this tool, and that it is meant for extreme cases. Seeing a few spammy-looking links in a backlink checker is not a reason to act.
Quick Decision Guide
| Your situation | What to do |
|---|---|
| You have a manual action for unnatural links | Remove the bad links where you can, disavow the rest, and submit a reconsideration request |
| You see many spammy links you built or paid for in the past | Ask for removal or a nofollow tag, and consider disavow if you are at risk of a manual action |
| You see a few random spammy links | Do nothing. This is normal |
| A tool shows a high “toxic” score but traffic is fine | Review the links manually before you act |
| You see a sudden flood of spammy links | Watch Search Console closely and keep records. Act only if you get a manual action |
How to Find Risky Backlinks: Step by Step
Step 1: Check for a manual action
In Google Search Console, open the Manual actions report. If it says no issues, you have no manual penalty. If you see a message about unnatural links to your site, you need to act.
Step 2: Export your links
Open the Links report in Search Console and use the export button. Remember that this report is a sample. Compare it with one backlink tool for a fuller picture. Our guide explains why some backlinks do not show in Search Console.
Step 3: Look for patterns, not single links
- Links from sites in a completely unrelated topic or language.
- Many links from the same network, with the same layout and thin articles.
- Many links with the same exact-match keyword anchor text.
- Links from sites that sell links openly without any tags.
Step 4: Ask for removal first
Google recommends removing as many spammy or low-quality links from the web as possible before you disavow. Contact the site owner politely, name the page and the link, and ask them to remove it or add a nofollow or sponsored tag. Keep a record of every request.
Step 5: Disavow only what remains and only if needed
If you meet Google’s conditions, make a text file that lists the pages or domains to disavow, and upload it with the disavow tool. Google explains the exact file format on its help page. Note that the tool does not support Domain properties, so you need a URL-prefix property to use it. Disavowing does not delete a link from the internet. It only asks Google to ignore it.
Step 6: Monitor and keep building good links
Check Search Console every month. At the same time, focus on earning relevant, high-quality links and content people want to share.
Mistakes That Make Things Worse
- Disavowing by tool score alone. You may disavow good links that help you.
- Disavowing a whole domain extension. You can do it, but it is rarely a good idea.
- Waiting for a penalty to fix old paid links. Tag or remove links that break the rules before they cause trouble.
- Ignoring link quality when you buy. Prevention is easier than cleanup.
How to Avoid Toxic Links From the Start
The best protection is a careful buying habit. Choose sites that are real publications with real traffic, check that their pages are indexed, and open the example post before you order. Understand the scores with our guide to DA and DR, and learn how link tags work in our guide to dofollow and nofollow links. Google asks that paid and guest links be qualified with nofollow or sponsored, as its spam policies explain. If you are not sure where to start, read how to buy guest posts, or filter sites on our All Sites page. We never promise rankings, and our Link Guarantee explains what we cover.
Frequently Asked Questions
What are toxic backlinks?
They are links from spammy, manipulative or very low-quality sites, such as private blog networks, unrelated spam sites or large batches of links built only to influence rankings. “Toxic” is an industry term, not an official Google label.
Do toxic backlinks hurt my SEO?
Google says it can usually assess which links to trust, and most sites do not need to act. A large pattern of manipulative links can lead to a manual action, which is when it becomes a problem.
When should I use the disavow tool?
Only if you have a considerable number of spammy or low-quality links and they have caused, or are likely to cause, a manual action. Try to remove the links first.
Does a high Spam Score mean I have a penalty?
No. Spam Score is a Moz estimate of how many similar sites were penalized. It is not a penalty and it is not a Google metric.
Can I disavow links on a Domain property?
No. Google says the disavow tool does not support Domain properties, so you need a URL-prefix property for the site.
Can disavowing hurt my site?
Yes, if you disavow good links by mistake. That is why Google calls it an advanced feature and says to use it with caution.
About Mark Wood Official
Mark Wood Official is a marketplace where you choose guest post sites yourself. You can filter more than 8,000 publisher sites by budget, DA, DR, traffic, niche and link type, see the price and an example post for each, and pay after we confirm availability. Compare sites on All Sites or contact us for help.