A competitor backlink analysis is a five-step process: confirm which sites are actually competing with you in the search results (not just for customers), pull their referring domains, run a link intersect to isolate domains linking to several rivals but not you, sort what’s left by acquisition pattern rather than authority alone, and turn the survivors into a prioritized outreach list. For the scaled version of this process, covering ten or more competitors, Ahrefs estimates two to four hours for most people to work through it. The output isn’t a copy of a rival’s link profile. It’s a shortlist of realistic targets, plus a clearer read on how they’re actually winning links.
How to Confirm You’re Comparing the Right Competitors
A business competitor and an SEO competitor are not the same thing. A business competitor sells to the same customers you do. An SEO competitor ranks for the keywords you’re trying to rank for, whether or not they compete with you commercially, and only the second group’s backlinks are worth studying here.
The fastest way to build that list is to check who actually shows up in the search results for your target terms, not who you’d name if someone asked “who’s your competition.” Ahrefs recommends the Organic competitors report in Site Explorer, which surfaces sites ranking for the same queries you do. Semrush offers the same idea from a different angle: enter your domain into Organic Rankings and open the “Competitors” tab to see who overlaps with you on keywords and audience. Either way, you want 3 to 6 domains that genuinely compete with you in the SERPs, not a wish list of the biggest brands in your space.
One filtering trick worth keeping: if your niche is local or narrow, a raw “top ranking sites” list often gets crowded with directories and aggregators that outrank everyone on authority alone but tell you nothing about how a real competitor earns links. Ahrefs’ own guidance is to filter by Domain Rating under 50 in these cases, since “most local sites won’t have a DR that high, whereas directories and aggregators like yellowpages.com will.” Drop anything that clears that bar for the wrong reason before you move to the next step.
Pulling and Cleaning Each Competitor’s Referring Domains
Once you have a short list of real competitors, export each one’s referring domains, not their total backlink count. A domain with 40 links pointing to a single competitor page still counts as one referring domain, and analyzing at the domain level keeps a single site-wide footer link or an aggressive directory submission from skewing your read of how a competitor actually builds links.
Ahrefs’ Site Explorer and Semrush’s Backlink Analytics both export this at the domain level directly. Google Search Console won’t help here since it only reports links pointing to properties you own; it has no visibility into a competitor’s link profile. If you don’t have a paid subscription to either platform, most free backlink checker tools will still show you a competitor’s top referring domains, just with a lower crawl ceiling and less historical depth than a paid index.
Running a Link Intersect to Find the Overlap
This is the step that turns a pile of exports into an actual target list. A link intersect cross-references the referring domains of several competitors at once and flags which domains link to more than one of them. Ahrefs describes the process directly: enter your competitor list into the Link Intersect report, and it returns “a list of all the referring domains that your competitors have” along with how many of them each domain links to. Semrush’s Backlink Gap tool works the same way: enter your domain and up to four competitors, and the results show which domains link to your rivals but not to you.
A domain linking to three of your four rivals is a stronger signal than a domain linking to just one, because it points to a genuinely repeatable pattern rather than a single relationship one competitor happens to have. As Search Engine Land puts it, “if a domain links to multiple competitors, it’s usually a strong outreach opportunity.” Sort your intersect results by that overlap count first, before you look at anything else.
Sorting the Overlap by Pattern, and Filtering Out What Isn’t Worth Chasing
A list of 40 or 50 overlapping domains is not yet a plan. The useful next move is grouping them by how the link was likely earned, since that tells you whether the opportunity is repeatable.
Say you run a project-management SaaS product and your link intersect turns up 40 shared domains across three real rivals. Sorting by pattern might show 15 are resource-page links from productivity blogs, 10 are guest-post bylines on marketing sites, 8 are directory or tool-roundup listings, and 7 are one-off press mentions tied to a competitor’s funding announcement. The resource-page and guest-post clusters are repeatable: you can pitch the same blogs with a comparable asset. The funding-round mentions aren’t, since you can’t manufacture a competitor’s Series A. Deprioritize the pattern you can’t recreate and put your time into the ones you can.
While you’re sorting, watch for patterns that look coordinated rather than earned: identical anchor text across many unrelated domains, sites that exist only to host outbound links, or footprints of paid placement. Google’s spam policies define practices like “buying or selling links for ranking purposes” and “using automated programs or services to create links” as link schemes, and a rival’s link profile can absolutely contain some of these even if the rest of it is earned normally. Not every backlink a competitor has is a backlink worth pursuing, and copying a pattern that maps to a link scheme puts your own site at risk for a link you didn’t need. For a deeper checklist on separating an earned link from a risky one, see what makes a high-quality backlink.
How This Differs From a Backlink Gap Analysis or a Backlink Audit
The three terms get used interchangeably, but they answer different questions and start from different data:
| Task | Question It Answers | Starting Data | Guide |
|---|---|---|---|
| Competitor backlink analysis | How are my rivals winning links, and which of those sources could work for me? | Competitors’ referring domains | This post |
| Backlink gap analysis | Which specific domains link to my competitors but not to me? | Link intersect / gap-tool output | Backlink gap analysis |
| Backlink audit | Are the links I already have healthy, live, and correctly attributed? | Your own referring domains | How to do a backlink audit |
A competitor backlink analysis is the broadest of the three: it covers understanding the landscape and building a target list, and the gap analysis is really one filtered output of it (the overlap domains you don’t have yet). The audit is a separate exercise entirely, pointed at your own profile rather than a competitor’s.
From Target List to Landed Link: Verifying and Monitoring What You Earn
Once you’ve filtered your intersect results down to a realistic target list, ranked by overlap count and repeatable pattern, the remaining work is outreach: pitching each domain with the angle that fits how it linked to your competitors in the first place.
The analysis doesn’t end when a link goes live. A link you land through outreach today can quietly go nofollow, get its anchor text edited, or disappear in a site redesign months later, and none of that shows up unless you’re checking. BacklinkTower’s per-link status checks confirm a new link is live with the expected attribute as soon as you add it, and the monitoring layer re-checks it on a schedule so a dropped or altered link surfaces the moment it happens rather than the next time you happen to look.
Frequently Asked Questions
What’s the difference between a competitor backlink analysis and a backlink gap analysis?
A competitor backlink analysis is the full process: identifying real SEO rivals, pulling their referring domains, and understanding their link-building patterns. A backlink gap analysis is a narrower output of that process, specifically the list of domains that link to your competitors but not to you. Most people run the gap analysis as the third step of the broader competitor analysis.
How many competitors should I include in a link intersect?
Three to five real SEO competitors is the practical range for most sites. Fewer than three gives you too little overlap data to spot real patterns. More than five is workable but slows down manual review of the results, since every domain added multiplies the combinations the intersect has to check.
Should I try to get every backlink a competitor has?
No. Some of a competitor’s links come from patterns Google’s spam policies classify as link schemes, such as paid placements or automated link networks, and copying those puts your own site at unnecessary risk. Prioritize domains that link to multiple competitors through an editorial or repeatable pattern (resource pages, guest posts, roundups) over one-off links or anything that looks coordinated.
Can I do a competitor backlink analysis without an Ahrefs or Semrush subscription?
Partially. Most free backlink checker tools will show a competitor’s top referring domains, just with less depth and a smaller crawl than a paid index. Google Search Console can’t help at all for this step since it only reports links to properties you own, not to competitor domains. A paid Ahrefs or Semrush plan gives you the full link intersect feature in one place, which is harder to replicate manually across multiple free tools.
How do I tell if a competitor’s backlink came from a link scheme I shouldn’t copy?
Look for the footprints Google describes in its spam policies: identical anchor text repeated across many unrelated domains, linking pages that exist only to host outbound links with no real content or audience, or a cluster of links that appeared in a short window with no matching content or PR event. A single suspicious link isn’t proof of anything, but a pattern of them across several domains is a signal to skip that particular source rather than chase it.
How often should I re-run a competitor backlink analysis?
Quarterly is a reasonable default for most sites, and sooner if a competitor visibly jumps in rankings or you notice new domains linking to them in your existing monitoring. Link-building patterns in most niches don’t shift fast enough to justify running the full workflow monthly.
What should I do after I land a link from my target list?
Confirm it’s live with the attribute you expected (dofollow, sponsored, or otherwise), and add it to whatever process you use to monitor your existing backlinks. A newly earned link is only valuable for as long as it stays live and correctly attributed, and outreach wins are exactly the kind of link that can quietly disappear in a site migration or content cleanup on the linking domain’s end.
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