How to Analyze Competitor Backlinks in 2026 (With a Real Example)

Competitor backlink analysis is the fastest way to build a link-building list that isn't guesswork: export the sites linking to a rival at your stage, keep the ones that link for a repeatable reason, and pitch those first. Below is the method, then the whole thing run on two real domains so you can see what the output actually looks like — including the part every tutorial skips, which is that most of a gap list is noise.

Why competitor backlink analysis works

If a site links to a competitor, there is a strong chance it is open to linking to you: you serve the same audience and solve a similar problem, and the site has already shown it writes about your category and links out. Instead of guessing where to pitch, you start with a proven list of linkers. Nothing else in link building has that hit rate.

Step 1: Pick two to four competitors at your stage

Don't analyze the biggest brand in your space. Their links are mostly unrepeatable — press, partnerships, brand mentions from being the default — and a gap list against a site with 20,000 referring domains is a list you cannot act on. Choose:

• Direct competitors that rank for the keywords you want
• Sites at a similar stage to yours, so their links are realistic for you to earn
• Two to four of them, not twenty — depth beats breadth

Step 2: Pull their backlink profiles

Any backlink tool works: Ahrefs, Semrush and Moz for the deepest indexes; Google Search Console for your own site (free, but it only shows you). For a first pass with no account, our free competitor backlink checker takes your domain plus one competitor and lists the sites in their top 100 referring domains that don't link to you.

Whatever you use, work in referring domains, not backlinks. One domain linking 50 times from a footer is one relationship, not 50 — and referring domains is the number that tracks with rankings.

Step 3: Read the summary before the list

Four numbers tell you the shape of the job before you open a single row:

• Referring domains — if theirs is three times yours, that's the size of the gap
• Domain rank — similar rank on far fewer domains means your links are good and you need more of them; much lower rank on similar domains means the opposite
• Dofollow share — a very high nofollow share usually means comments, forums and profile links, which is a different problem
• Spam score — high on their side is good news for you: part of their count is worthless

Step 4: Find the patterns in the gap list

The gap list — sites that link to them and not to you — is where the value is, and it is also where people give up, because it looks random. It isn't. Sort by domain rank and group each row by why the site linked:

• Resource pages and link roundups
• Guest posts (the same author byline across several sites)
• Listicles — "best tools for X" — where you could be added
• Podcasts, newsletters and interviews
• Directories in your category
• Community and ecosystem sites — a framework's showcase, a conference's sponsors page, a Slack community's tools list
• Customer footers and badges — "powered by" links, which show up as one domain with hundreds of backlinks

Then throw away what you can't repeat: scraper sites, casino and pharmacy spam that links to everyone, paid placements you won't match, name collisions (a site that links to acme.com because it's about a different Acme) and one-off press hits.

Step 5: Prioritise the link intersect

The highest-value targets are domains linking to two or more of your competitors and not to you. These "link intersect" sites clearly link to companies like yours — you are the obvious missing name, and the pitch writes itself. Run the check against each competitor, keep the domains that appear more than once, and put those at the top.

A real example: Plausible vs Fathom

Two privacy-first analytics tools, roughly the same age, roughly the same shape of customer. Numbers pulled 20 September 2026 from the same index the free checker uses; run it yourself for today's.

Reading the summary. Plausible has twice the referring domains and nearly three times the backlinks, yet the two domain ranks are a point apart. That is the "quality vs quantity" read from step 3: Fathom's links are, on average, stronger. If you were Fathom, the job is more links of the kind you already have. If you were Plausible, the gap list is where to find the kind you don't.

Reading the gap list. Of Fathom's top 100 referring domains, 98 do not appear in Plausible's top 100 — only two sites (a consent-management vendor and a competitor-intelligence tool) are in both. Ninety-eight rows looks like a lot of opportunity. Grouped by pattern, it looks like this:

• A developer ecosystem, not a link campaign. laravel.io, larachat.co, laravel-mix.com, laravel-livewire.com, builtwithtailwind.com, wintercms.com, caddyserver.com, cachethq.io, mintlify.dev — Fathom's founders came out of the Laravel and Tailwind community, and that community links to its own. The single largest rows in the list (laravel.io, 35,000+ backlinks; larachat.co, 16,000+) are sitewide links from one relationship each. You can't replicate their community, but the repeatable version is a real question: which ecosystem are you from, and are you listed in its showcases, integrations pages and community tool lists?
• Civic and privacy organisations. opendata.ch, data-hackdays-be.ch, dribdat.cc, hack4socialgood.ch, defaultprivacy.com, fightforthefuture.org, faktabaari.fi, petition-track.uk — nonprofits that chose privacy-first analytics on principle and say so in a footer. Several are 500–7,000 backlinks from one domain: a badge, not an article. Repeatable: a "we use X" badge programme and a case-study page for the sector.
• Developers' personal sites. craiga.id.au, nilsenpaul.nl, anthonyledonne.com, joebuhlig.com, dylanbeattie.net, brycewray.com, robholmes.app, nickebdon.co.uk — "how I set up analytics on this site" posts and colophons. Repeatable: setup docs good enough that people write about them, and a referral programme (Fathom has one) that gives them a reason to.
• Directories. spotsaas.com, analyticsdir.com, postmake.io, storeleads.app, littlelink.io, goods.so — submit today, no pitch required.
• Noise. Three casino sites, a shipping company that happens to be called Fathom, a URL scanner, and a dozen one-link oddities. Roughly a fifth of the list. Skip without a second look.

So the 98-row gap list becomes four campaigns and a directory afternoon — and the first campaign is not "get links from Laravel sites", it's "find out which community would link to us the way that one links to them". That is the whole point of doing this by pattern rather than by row.

Step 6: Qualify, organise and pitch with context

Run each opportunity through the same filter you'd use for any prospect: relevant to your audience, real authority, page still maintained. Then organise them so you can track the target page, the person behind it and the outreach status. This is the workflow Sightivo is built around — a raw gap list turned into a scored queue with the author, their contact and a drafted note, and everything you send is yours to approve.

Because you know why the site links to competitors, your pitch can be specific:

Hi [Name], I noticed you featured [competitor] in your [page]. I run [your product], which [key difference]. If you're updating the list, I'd love to be considered.

Are backlinks still worth this in 2026?

Yes, with two adjustments. Google has spent two years saying it needs "very few links" to rank a page and that links matter less than they did; what it has never said is that they matter nothing, and 2026 ranking-factor surveys still put them in the top three behind relevance. The adjustment is that a handful of relevant, editorial links now does what a hundred generic ones used to.

The second adjustment is the one this whole method is quietly good at: the pages that link to a competitor are also the pages AI assistants read when someone asks "what's the best X". A brand mention in a roundup ChatGPT cites is worth more today than a bare link from a page it never reads. Competitor backlink analysis finds those pages too — you just stop filtering for dofollow when you get there.

Common Questions

How do I find a competitor's backlinks for free?

Enter their domain in our free backlink checker: you get domain rank, referring domains, dofollow share and their top 100 links with no account for the first check. Ahrefs Free and Semrush's free tier show a sample too. For the gap against your own site, add your domain alongside theirs.

How many competitors should I analyse?

Two to four, at your stage. One competitor gives you their quirks; four gives you the pattern; twenty gives you a spreadsheet you will never open again.

What is a link intersect?

A domain that links to two or more of your competitors but not to you. They are the strongest targets in any gap list because they have already linked to companies like yours more than once.

How often should I re-run a competitor backlink analysis?

Quarterly is enough for the full exercise. Between runs, watch for new links your competitors gain — a new roundup or directory that lists them and not you is the freshest pitch you will ever send.

Should I try to get every link a competitor has?

No. Most of any profile is unrepeatable — press, partnerships, their own community, spam. In the example above, roughly one row in five was noise and several of the largest were sitewide links from a single relationship. Take the repeatable patterns and leave the rest.

The bottom line

Competitor backlink analysis replaces guesswork with a proven target list. Pick realistic competitors, read the summary before the rows, group the gap list by why each site linked, prioritise the intersect, and pitch with context. You're not copying competitors — you're fishing where the fish already are, and skipping the water where they never were.