Backlink Gap Analysis

Backlink gap analysis finds link opportunities by comparing your site's backlinks to those of your competitors. This Competitor Analysis method shows you which sites link to competitors but not to you, giving you a ready-made list for Link Building outreach.

The process begins with finding your main competitors using SERP Competitor Mapping tools. Next, you gather their Backlinks data with SEO Tools and compare it to your own link profile. Sites that link to your competitors already show interest in your topic, making them ideal targets for Resource Page Outreach or Broken Link Building.

This technique works best alongside Keyword Gap Analysis and Content Gaps research to build a complete competitive strategy. Focus on sites linking to multiple competitors first, as these are your highest-priority targets. These domains already value content in your niche, making them more likely to respond to your outreach efforts.

SEOLinkMap provides backlink gap analysis within our Competitor Research tool, analyzing the competitive landscape for specific keywords. This integration reveals not just who links to your competitors, but how those linking patterns influence search rankings for your target terms.

What Backlink Gap Analysis Reveals

The first thing backlink gap analysis reveals is the size of the gap, and that decides whether link building is the right job at all. If the pages above you have thirty referring domains and you have twenty-five, the ranking difference is probably not links. If they have four hundred and you have twenty, it is, and no amount of content work closes it. Counting referring domains rather than raw links is what makes the comparison honest, because a hundred links from one site are one vote.

The second thing is the intersection: the sites that link to two or more of your competitors and not to you. A site that links to one competitor might have a relationship with them. A site that links to three has a habit, and that habit is the shortest prospect list a campaign will ever have.

The third thing is what got linked. The competitor's most-linked page is rarely their home page. It is a study, a tool or a guide, and that tells you what kind of asset earns links in this market before you build one.

Backlink Gap Analysis In Practice

Backlink gap analysis starts with the five or six competitors that SERP competitor mapping turned up, not your business rivals, because the gap that matters is against whoever holds the results. Pull their referring domains and yours, intersect, and sort by how many competitors each domain links to. Two or more is the working list.

Then filter, because a backlink index is a sample and a list is not a plan. Check the link is still live, since indexes lag. Check it is followed, because nofollow/dofollow decides whether the equity you are chasing exists. Check where on the page it sits, since an editorial mention in body copy and a footer credit are not the same prospect. The sites linking to every competitor are often directories and "best tools" lists, legitimate targets but a different pitch from a news site that cited one competitor's data.

The page type tells you the tactic. A curated list of resources is resource page outreach. A link to a competitor page that has since gone dead is broken link building. A news mention of their research is a signal to produce research of your own and take it to digital PR. Two tools will give two different gap lists because their indexes differ, so run the analysis in one tool and stay in it.

Where Backlink Gap Analysis Fits

Backlink gap analysis is one of three gap analyses under competitor analysis. Keyword gap analysis and content gaps are the body content gap, the queries they have a page for and you do not. This is the anchors gap. Together they say whether a competitor is winning on what they wrote or on who links to them, which decides where the next month of work goes.

Its output is the prospect list that link building starts from, and link velocity is the pace check on how fast that list should be worked.

In the lifecycle, it runs before a link campaign and again every few months, because competitors' link profiles move. It is also the analysis to run when a page matches the winners on content and still sits below them, because that is the situation where the answer is nearly always here.