Backlink Gap Analyzer
Find websites linking to your competitor but not to you. Discover outreach targets and close the backlink gap instantly.
What is a Backlink Gap?
A backlink gap occurs when one or more of your competitors have secured backlinks from referring domains that do not currently link to your website. In the eyes of search engines, these links serve as "votes of confidence." If your top competitors share a high-authority backlink and you don't, you are at a competitive disadvantage in organic search.
Why You Need to Close the Gap
Finding your backlink gap is the highest-ROI link building strategy because the domains are already pre-qualified. If a website is willing to link to your direct competitor, they are statistically much more likely to link to you—whether through a guest post, a resource page inclusion, or a broken link replacement.
How to Use This Tool
- Identify Competitors: Enter your domain and the domain of a competitor who outranks you for your target keywords.
- Analyze Intersections: The tool will output a list of domains linking to them but not to you, with an authority and spam score for each.
- Outreach Strategy: Review the pages on the referring domains. Reach out to the site owners with a compelling reason why your content is a better or complementary fit.
- Check your baseline: Run the Backlink Checker on both domains first if you want the headline numbers, and use the Link Opportunity Finder to turn a niche into search operators for prospects no competitor has yet.
Frequently asked questions
Does this tool require an account?
Yes. Every run pulls live data from our backlink index, and each lookup costs us real money with that provider — so the gap report is part of a Pro plan. Plenty of the other free tools, like the readability grader, schema generator and SERP preview, compute in your browser and stay free on any account.
How often is the backlink data updated?
We pull from a continuously refreshed index of the web, so you're working from current link data rather than a stale export. Newly built links can still take time to be crawled and indexed anywhere, so treat a very recent link's absence as a timing artefact rather than proof it doesn't exist.
Should I target every missing link?
Not necessarily. Focus your effort on high-quality, relevant domains. A link from a reputable industry blog is worth far more than dozens of low-quality directory links — which is why the report shows an authority score and a spam score for every domain, so you can work down from high authority and low spam.
Why do I only get the top 100 domains?
The report shows the total number of gap domains we found, but returns the strongest 100 by authority — that's already far more prospects than most outreach campaigns work through, and it keeps each run fast. You can download the full result set as a CSV to work through it in a spreadsheet.

Start building your content library in under 8 minutes.
Your competitors are publishing every week. Every week you don't is a week of organic traffic going to them.
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