Backlinks are links from other websites pointing to your site. They act as votes of confidence and are one of Google's top 3 ranking factors.

What is a referring domain?

A referring domain is a unique website that links to you at least once. 50 links from one site still counts as one referring domain.

What's the difference between dofollow and nofollow?

Dofollow links pass PageRank and help rankings directly. Nofollow links include rel=nofollow and don't pass ranking signals, but still drive referral traffic.

What does spam score mean?

Spam score (0-100) estimates how likely a backlink profile is to be penalized. Under 30 is healthy; above 60 warrants a backlink audit.

How can I get more backlinks?

Create link-worthy content, do digital PR outreach, guest post on authoritative sites, use broken link building, and earn editorial mentions through expertise.

Yes. 5 free checks per day shared with other tools. Identical queries are cached for 24 hours and do not consume your quota.

Backlink Checker

Analyze any website's backlink profile. See total backlinks, referring domains, dofollow ratio, spam score, and link type distribution.

Domain

How to Use This Backlink Checker

Backlinks remain one of Google's top 3 ranking factors. Understanding your backlink profile - and your competitors' - is essential for any SEO strategy. Use this tool to audit link quality, identify toxic links to disavow, and benchmark your domain authority against competitors.

Focus on the referring domains count rather than raw backlink numbers. A site with 100 links from 80 unique domains will almost always outrank a site with 1,000 links from 10 domains. Breadth of endorsement matters more than volume from a single source.

Quality over quantity

10 links from authoritative, relevant sites outweigh 1,000 links from low-quality directories. Focus your link building on earning editorial mentions from real publications.

Monitor your spam score

If your spam score is above 30, audit your backlinks for PBNs, hacked sites, and irrelevant foreign-language links. Consider submitting a disavow file to Google.

Dofollow ratio matters

A natural link profile has a mix of dofollow and nofollow links. A 70-80% dofollow ratio is typical. An unnaturally high dofollow percentage can look manipulative to Google.

Fix broken backlinks

Broken backlinks are wasted link equity. Set up 301 redirects for any URLs that have moved, or reach out to linking sites to update the URL.

Frequently Asked Questions

Common questions about backlinks, referring domains, and link building.

Related Tools

More free analysis tools

XML Sitemap Validator

Validate your XML sitemap for syntax errors, broken URLs, and missing pages that could prevent proper Google indexing.

Canonical Tag Checker

Check any URL for canonical tag issues that cause duplicate content problems and dilute your page's search ranking signals.

Keyword Density Checker

Measure keyword frequency in any content and identify over-optimization or under-usage before publishing to search engines.

Open Graph Checker

Inspect any URL's Open Graph tags, meta description, and Twitter Card data to verify correct social previews and SEO output.

Want these on autopilot?

RankPill automates everything these tools do. Meta descriptions, titles, content briefs, and full articles published to your site every day without lifting a finger.

Get Traffic on Autopilot