What a do-follow backlink checker does
A do-follow backlink checker is a tool that shows you which other websites have links pointing to your site, and whether those links are the kind that search engines count toward your ranking. When another site links to you with a do-follow link, search engines treat it as a vote of confidence — it tells Google and Bing that your content is worth sending people to. A do-follow backlink checker finds those links and lists them so you can see who is linking to you and from where.
The tool does not change anything on your site or anyone else's. It straightforward searches the web for mentions of your domain and reports back what it finds. Most checkers show you the linking page, the anchor text (the clickable words), and whether the link is do-follow or no-follow. Some also show you how much authority that linking site appears to have, based on its own backlink profile.
You do not need to own a backlink checker to use one. Many are free or offer a limited free version. Others charge a monthly fee for more detailed reports or the ability to check more often. The choice depends on how many links you expect to find and how often you want to check.
Key Takeaways
- Do-follow backlinks pass ranking authority to your site, while no-follow links do not, and a backlink checker tells you which is which.
- Free tools like Google Search Console, Ahrefs Free Backlink Checker, and Moz Link Explorer show you basic backlink data without payment.
- The most useful backlinks come from sites in your industry or topic area that already have their own strong ranking authority.
- A sudden spike in backlinks from unrelated sites or low-quality domains is often a sign of spam and can hurt your ranking instead of helping it.
- Checking your backlinks once a month is usually enough unless you are actively building links or running a marketing campaign.
Free tools that show you backlinks
Google Search Console is the first place to look. It is free, it is run by Google itself, and it shows you every backlink that Google has found pointing to your site. Go to Search Console, sign in with your Google account, and add your website if you have not already. Then click Links on the left menu. You will see a list of the top linking sites, the pages on your site that are most linked to, and the anchor text people used. This data comes straight from Google's index, so it is the most reliable source.
Ahrefs Free Backlink Checker and Moz Link Explorer are the next step if you want more detail. Both let you enter your domain and see a snapshot of your backlinks without paying. Ahrefs shows you the top 100 backlinks, the referring domains, and a traffic estimate for each linking site. Moz shows similar information and also gives each link a spam score. Neither tool is as complete as the paid versions, but both are honest about what they show you and what they leave out.
Ubersuggest, owned by Neil Patel, also offers a free backlink report. It shows fewer links than Ahrefs or Moz but is still useful for spotting your strongest backlinks and any obvious spam. If you are just starting out and want a quick overview, any of these three will give you a real picture without a credit card.
What makes a backlink valuable to your ranking
Not all backlinks help equally. A link from a site that Google already trusts — like a news outlet, a university, or an established industry publication — carries more weight than a link from a brand-new blog. Search engines look at the authority of the linking site, which they estimate based on how many quality backlinks that site itself has. A backlink checker usually shows this as a number like Domain Authority (Moz) or Domain Rating (Ahrefs), on a scale of 1 to 100.
Relevance also matters. A link to your plumbing business from a local home improvement site is more valuable than a link from a random tech blog. Search engines assume that a relevant link means the linking site author actually read your content and thought it was worth sharing. A random link from an unrelated site looks like it might be paid or artificial, which counts for less.
The anchor text — the words someone clicks on — also signals what your page is about. If a site links to you with the words "best plumbing services in Denver," that tells search engines your page is about plumbing in Denver. If the anchor text is just "click here," the link still counts, but it does not tell search engines anything specific about your page's topic.
Spotting spam and low-quality backlinks
A backlink checker helps you spot links that might hurt your ranking instead of helping it. If you suddenly see dozens of backlinks from sites you have never heard of, all with generic anchor text like "casino" or "loans," those are almost certainly spam. Search engines penalize sites that receive too many low-quality links, because spam links are a sign that someone is trying to game the system.
Watch for links from sites with very high spam scores. A backlink checker like Moz will flag these. Links from sites full of ads, with no real content, or that exist only to sell links are red flags. If you see a pattern of links from the same network of sites, or links that appeared all at once, that is another warning sign.
If you find spam backlinks pointing to your site, you can disavow them in Google Search Console. Disavowing tells Google to ignore those links when calculating your ranking. Go to Search Console, click Links, then use the Disavow Links tool. You will upload a text file listing the domains you want to disavow. Google will not remove the links themselves, but it will stop counting them against you.
How often to check your backlinks
If you are not actively building links or running a marketing campaign, checking once a month is enough. Use Google Search Console as your regular check-in — it updates frequently and is always free. A monthly review lets you spot any sudden changes, like a new high-authority link or a spike in spam.
If you are working on link building — reaching out to other sites, writing guest posts, or running a PR campaign — check every two weeks. This helps you see which efforts are working and which are not. If you are in a competitive industry and your competitors are actively building links, checking every week or two helps you stay aware of what they are doing.
Do not check obsessively. Backlinks take time to appear in search results, and checking daily will not change anything. Most backlink checkers update their data once a week or once a month anyway, so more frequent checks will just show you the same information.
Understanding do-follow versus no-follow
Every backlink has an attribute that tells search engines whether to count it or not. A do-follow link passes ranking authority from the linking site to yours. A no-follow link does not. The difference is invisible to a visitor — both links work the same way and send people to your site. But search engines treat them differently.
A backlink checker shows you which links are do-follow and which are no-follow. Most quality links are do-follow, because sites that link to you usually want search engines to see that link. No-follow links are common on social media, in comments, and on sites that link to many different places. They are not worthless — they still send traffic — but they do not boost your ranking.
If most of your backlinks are no-follow, that is not a disaster. A healthy backlink profile has mostly do-follow links, but some no-follow is normal. If you see that a site linked to you with no-follow when you expected do-follow, you can reach out and ask them to change it. Some sites will, some will not. It is worth asking if the link is from a high-authority site.
Building a better backlink profile
A backlink checker shows you what you have. To get more backlinks, you need to create content that other sites want to link to. Write something useful — a guide, a tool, original research, or a resource that solves a real problem. Then reach out to sites in your industry and let them know about it. If your content is genuinely useful, some will link to it.
Guest posting is another common way to build backlinks. You write an article for another site's blog, and they include a link back to your site in your author bio or in the article itself. This works best when you write for sites that your audience already reads. A guest post on a major industry publication is worth more than a post on a random blog.
Broken link building is a third strategy. You find a page on another site that links to a resource that no longer exists, then offer your own content as a replacement. This requires more work, but it often succeeds because you are solving a real problem for the site owner.
Frequently Asked Questions
Can I check backlinks for a website I do not own?
Yes. Backlink checkers work on any public domain. You can check your competitors' backlinks to see where they are getting links from, then reach out to those same sites about your own content. This is a common competitive research tactic and is not against any rules.
Why does my backlink checker show different numbers than Google Search Console?
Different tools find different backlinks because they crawl the web at different times and use different methods. Google Search Console shows what Google has actually found and indexed. Third-party tools like Ahrefs and Moz have their own indexes that may be slightly behind or include links Google has not yet found. Google Search Console is the most accurate for your actual ranking.
If I get a backlink from a spam site, will it hurt my ranking?
One or two spam links will not hurt you. Search engines expect some low-quality links and ignore them. A large number of spam links, or a sudden spike, can trigger a manual review or a ranking penalty. If you see a pattern of spam, disavow them in Google Search Console to be safe.
Do I need to ask permission before linking to another site?
No. Linking to other sites is how the web works, and you do not need anyone's permission. You do not need to notify them either, though some people do as a courtesy. The only exception is if you are linking to copyrighted content in a way that violates copyright law, which is rare for normal web links.
What is the difference between a backlink and a referring domain?
A backlink is a single link from one page to another. A referring domain is the website that the link comes from. If a site has ten pages that all link to you, that is ten backlinks but only one referring domain. Referring domains often matter more than total backlinks, because links from many different sites look more natural than many links from the same site.