Free Tools/Backlink Gap Analyzer
Competitive

Backlink Gap Analyzer

Find websites that link to your competitors but not to you. These are your highest-priority link-building opportunities, sites already proven to link in your niche.

Why use our Backlink Gap Analyzer

Finds warm link-building leads

Surfaces sites already linking to your competitors, prospects far more likely to say yes than a cold outreach list you built from scratch.

Free backlink gap tool, no signup

Compare your backlink profile against competitors online with no account required, unlike agency-grade link intelligence platforms.

Compare against multiple competitors at once

See gap opportunities across several competitors together, so you can prioritise sites that link to more than one rival in your niche.

Higher outreach conversion than cold pitching

Sites that already link to competitors in your space have proven interest in the topic, pitching them typically converts far better than blind outreach.

What you need to know

What a backlink gap is: A backlink gap is a site that links to one or more of your competitors but not to you. These are warm leads, they're already willing to link in your niche.
Why this beats cold outreach: Sites linking to your competitors have already shown interest in your topic. Your pitch converts at 3–5x higher than cold outreach to random site owners.
How to prioritize gaps: Focus on high-DA sites that link to multiple competitors. The more competitors a site links to, the more likely they'll add your link too.
Turn gaps into links: Reach out with a specific angle: 'You linked to [competitor], we have [better resource] your readers would also find useful.' Offer genuine value.

Real Backlink Gap Analyzer example: before vs. after

Comparing a SaaS site against its top 3 competitors before and after acting on gap results.

Before · Before analysis

0

Shared link sources targeted

Outreach was untargeted, cold-pitching random sites with no idea which ones already link to competitors.

After · After analysis

23

Gap sites identified

23 sites already linking to at least 2 competitors became a prioritised, warm outreach list.

Frequently Asked Questions

What is a backlink gap?
A backlink gap is any website that links to your competitors but not to your site. These represent missed link-building opportunities.
How do I use the backlink gap results?
Export the list, sort by Domain Authority, and prioritize outreach to the highest-DA sites that link to multiple competitors.
How many competitors should I analyze?
Start with your top 3 direct competitors, the ones ranking just above you for your main target keywords.
Is backlink gap analysis effective?
Yes. It's one of the highest-ROI link-building strategies because you're targeting sites already proven to link in your niche.

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Backlink Gap Analyzer - Free Tool | SEOMentor