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Free Backlink Checker & Analysis Tool
See who links to any website in seconds. Check Authority Score, referring domains, and top backlinks, powered by Semrush data.
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How to Use the Free Backlink Checker
- 1Enter any domain or page URL in the field above
- 2Choose your scope and click "Analyze"
- 3See who links to the site and how strong it is
See Any Site's Backlink Profile at a Glance
Enter a domain. Get its core link metrics right away, with no setup and no signup.
- Get the site's Authority Score, Semrush's 1-100 quality metric
- Count referring domains, the unique sites that link in
- See the total number of backlinks and referring IPs
- Benchmark your numbers against any competitor
For the full list of links, try Backlink Analytics.
Dig Into Your Top Backlinks
Some links matter far more than others. Check the authority, anchor, and link type of each one.
- See the Authority Score of each linking page
- Read the anchor text each link uses
- Check which links are follow and which are nofollow
- Open any linking page to see the link in context
Check Your Competitors' Backlinks
The sites that link to your competitors are often your best link prospects.
- Check backlinks for any competitor domain
- Check a single competitor page to see who links to it
- Compare their link profile with yours
- Find sites linking to them, not you, with Backlink Gap
Check Backlinks for a Domain, Subdomain, or Single URL
Analyze exactly the part of a site you care about.
- Check a whole domain, including its subdomains
- Leave out subdomains to focus on the main site
- Check a single subdomain, like blog.example.com
- Check one exact URL, like a blog post or product page
Find Backlinks for Any Website
See any site’s Authority Score, referring domains, and top backlinks in one free report.
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What Does the Backlink Checker Show You?
Seven free link metrics, plus traffic data in Semrush
- FREE
Authority Score
Semrush's 1-100 score for the overall quality of a site, based on link power, organic traffic, and spam signals.
- FREE
Referring domains
The number of unique websites that link to the site. Often more telling than total backlinks.
- FREE
Top backlinks
Five backlinks to the site, each with the linking page's Authority Score and a link to the page.
- FREE
Anchor text
The clickable words each top backlink uses, so you can see how others describe the site.
- FREE
Follow and nofollow
Whether each top backlink is a regular follow link or marked nofollow, which Google treats as a hint.
- FREE
Backlinks
The total number of links pointing to the domain or URL you checked. One site can link many times.
- FREE
Referring IPs
The number of unique IPs behind the linking sites. Lots of sites on one IP can signal a link network.
- IN SEMRUSH
Traffic data
The site’s monthly visits, organic traffic, and paid traffic estimates in Semrush.
Who Should Use the Website Backlink Checker?
Backlinko's free backlink checker gives anyone a fast read on a link profile, whether it's your site or a competitor's.
- Link builders: find prospects and vet them fast
- SEO agencies and freelancers: quick competitor research for client pitches
- Site owners and bloggers: see who links to you, no SEO experience needed
- PR and content teams: check which campaign pages earn links
Need outreach targets? Backlink Gap finds sites linking to several of your competitors, often your best prospects.
How to Use Your Backlink Checker Report
Your report shows what's working in a link profile. Here's how to turn it into links of your own.
Benchmark your Authority Score
Run the backlink checker on your site, then on the top competitors you want to outrank. Authority Score works best as a comparison, so the gap between you and the sites ahead of you matters more than the number itself.
Focus on referring domains
One site linking to you 100 times isn't the same as 100 sites linking once. Our analysis of 11.8 million Google results found that top-ranking pages tend to have links from more domains, so aim for variety.
Study your top backlinks
Open each linking page in your report to see which of your pages it points to and why. If one study, tool, or guide keeps earning links, that's your signal to create more content like it and pitch it to similar sites.
Check your anchor text
Natural link profiles mix brand names, bare URLs, and topic phrases. If most anchors in your report repeat one exact-match keyword, that pattern can look manipulative. Let linking sites describe you in their own words.
Don't panic about nofollow links
Since September 2019, Google has treated nofollow as a hint, not a strict rule. A nofollow link from a relevant, credible page can still send real visitors and build brand visibility. Judge relevance before the attribute.
Mine your competitors' backlinks
Run the backlink checker on a competitor that outranks you. Any site linking to them on a topic you cover is a prospect for you, especially resource pages and roundups that already link to content like yours.
Vet prospects before outreach
Before you pitch, check the prospect's Authority Score, links, and organic traffic. A relevant site with real traffic is often worth more than a high-scoring site off your topic. Skip sites that openly sell links.
Recheck after every campaign
New links don't appear in backlink data instantly. Give them a while, then rerun the backlink checker and compare your referring domains and Authority Score. Check your profile at least once a quarter.
Go Beyond Your Top Backlinks with Semrush
This free tool gives you a fast snapshot. For a complete backlink analysis, Semrush gives you the full picture.
- See your full list of backlinks, referring domains, and anchors with Backlink Analytics
- Find competitors’ broken pages that still earn backlinks
- Spot competitor links you’re missing with Backlink Gap
- Review potentially risky links with Backlink Audit
Frequently Asked Questions
How the backlink checker works, what your numbers mean, and what to do with your report.
Ready to Check Your Backlinks?
Find out who links to any site in seconds. Free, no signup, three checks a day.
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