Finding competitor backlinks is easy. Knowing which gaps to chase first isn't. A scoring framework built on multi-competitor overlap, not a raw export.
Ask r/seogrowth how to get quality backlinks and the top-voted reply doesn't mention guest posts or digital PR first. It says: "go to ahrefs and reverse engineer the backlinks profile of your competitors. you can use link intersect filter to extract all the links." That's not a fringe opinion. It's the community's default first move, and it's been a real, named feature (Ahrefs calls it Link Intersect, Semrush calls it Backlink Gap, Serpstat and Morningscore both ship their own versions) for years. Finding the gap is a solved problem. What most people skip is the harder half: once the tool spits out a list of 400 domains that link to a competitor and not to you, which ones are actually worth chasing.
Why a raw gap list is close to useless on its own
A link intersect export ranks by domain metrics or alphabetically, not by anything that predicts whether outreach to that domain will work. Treat every row the same and you'll spend a week emailing sites that will never respond, alongside a handful that would have said yes in a day, with no way to tell which is which before you start. The fix isn't a better export, it's a scoring pass on top of the export before any outreach begins.
The one signal every gap tool already gives you but most people ignore
Run the intersect against three or more competitors at once, not just one. A domain linking to a single competitor could be a fluke, a personal relationship, or a one-off mention. A domain linking to three or four of your competitors and not to you is a pattern, not a coincidence, and it tells you something specific: that site has a repeatable reason to link to sites like yours, and you're the one obvious name missing from a list it's already building. That single filter, overlap count across multiple competitors rather than a single one, does more prioritization work than any other metric in the export.
Building the actual score
Once you have the multi-competitor overlap list, rank what's left by three more checks, roughly in this order:
1. Is the referring page still alive and relevant, or is it old and abandoned? A resource page last updated two years ago that still links to a competitor's dead product page is a different opportunity than a resource page updated last month. Check whether the page still gets any organic traffic before assuming the link is worth pursuing.
2. What kind of placement is it, and can you actually get the same one? A link from a genuine editorial mention inside a competitor's case study is close to impossible to replicate on demand. A link from a "best tools in this category" roundup, a directory, or a resource page is a placement type that's designed to add more entries, which makes it realistically winnable. Sort gap opportunities by placement type before you sort by domain authority; a DR70 editorial mention you can't get is worth less to your actual to-do list than a DR40 roundup that adds new tools every quarter.
3. Do you know why the site linked to your competitor in the first place? Read a backlink profile as a map of what a domain already chose to link to, not as a shopping list of links to copy. Look at what specifically earned the link (a tool, a data point, a specific piece of content) before pitching, and pitch the equivalent thing you actually have, not a generic "we'd love to be included" email.
What this looks like in practice
Run the intersect across your top three to five organic competitors. Pull everything, then cut the list down to domains linking to at least two of them. From what's left, drop anything where the linking page is dead, thin, or clearly abandoned. Sort what remains by placement type, roundups and resource pages first, one-off editorial mentions last. That process alone typically turns a 300-plus row export into a shortlist of 20 to 40 domains worth actual outreach time, and every one of them has already demonstrated, more than once, that it's willing to link to a site just like yours.
Where this differs from what's already on this blog
This blog already covers automated broken-link building, a specific tactic for reclaiming links from dead competitor pages, and the anatomy of an outreach email that gets replies, which covers what to say once you've found a target. Neither post addresses the step that has to happen before either of those: deciding which of the hundreds of possible targets to go after first. This is the targeting and prioritization layer that feeds every other link-acquisition tactic on this blog, not a replacement for any of them.
A directory listing is one of the simplest entries to add to a gap list like this, since the placement type (a directory) is exactly the kind that's designed to keep accepting new, relevant entries rather than the kind you'd need a personal relationship to earn.
