Most guides use “broken link building” and “link reclamation” as if they’re the same thing. They’re not. One is offensive: you find a dead link on someone else’s site and offer your page as the replacement. The other is defensive: you recover backlinks your own site already earned but lost when a page moved or got deleted. This guide covers both halves as part of one link building strategy, starting with how to find opportunities on other sites, then how to reclaim what you’ve already lost on your own.

“Broken link building is the practice of finding dead links on other websites and offering your own relevant page as a working replacement to earn an editorial backlink.”

Find broken links

Three sources produce the most usable broken link opportunities:

Competitor backlink profiles.

Run a competitor’s site through a backlink checker and filter for pages returning a 404. Any external site still linking to that dead page is a live prospect, since the link exists and just needs a working destination.

Resource and links pages in your niche.

Curated resource pages accumulate dead links over time as the sites they point to shut down or restructure. These pages are usually maintained by someone who wants them accurate, which makes the eventual outreach easier.

Dead references on Wikipedia.

Wikipedia citation links break constantly as source sites reorganize. A relevant, well-sourced replacement page has a real shot here, though Wikipedia’s own editorial standards mean the replacement needs to be genuinely citation-worthy, not just topically related.

Before pitching any of these, pull up the dead page in the Wayback Machine to see what it actually contained. Your replacement should match that original format and depth, not just the general topic.

404 link opportunities

Not all 404‘s are pursuit-worthy, and a 404 by itself isn‘t an issue to be fixed. Indeed, Google‘s own resources on how HTTP status codes affect crawling do confirm that a 404 is perfectly correct, expected response from a page that no longer exists, and that content returned with a non-2xx status code simply won‘t be considered for inclusion in the index. That‘s what creates the opportunity: the dead page has already fallen out of the target‘s search engine exposure, but the inbound links to it are still active.

Vet every opportunity on 3 things before you waste much outreach: the overall domain authority, domain traffic, whether the broken link was dofollow, and degree to which your replacement content can be an effective replacement of what gained the link in the first place. No matter how compelling the content, a data-driven report can‘t be replaced by a rambling opinion on the same general subject. If there‘s no good fit, avoid any awkward pitching.

Broken backlink checker

A basic broken-link-building stack covers three jobs: finding dead pages, seeing what they used to say, and tracking outreach.

Finding dead pages.

Ahrefs’ Content Explorer and Site Explorer, as well as Semrush‘s Backlink Analytics are the default paid tools for analyzing a competitor‘s backlink profile for 404s en masse. Screaming Frog crawls a given list of URLs you already know are likely 404s. For a gratis/manual method of your own, use the Check My Links browser extension works on any page you‘re currently logged into.

Seeing what a dead page used to contain.

The Wayback Machine saves “snapshots” of pages that don‘t exist any more, and this allow you to verify the original layout, perspective and depth before building your replacements.

Tracking outreach.

A spreadsheet is enough for most campaigns: log the broken URL, the linking domain, the contact found, the date pitched, and the outcome, so you’re not re-pitching the same site twice.

Reclaim lost links

This is the defensive half: recovering backlinks your own site already earned, but that broke because a page moved, got merged into another URL, or was deleted during a redesign. The link still exists on the other person’s site — it’s just pointing at nothing.

Find your own broken backlinks first.

Run your own domain through the same backlink checker you’d use on a competitor, filtered to referring pages that point at a URL on your site returning a 404. Google Search Console’s coverage report is a free way to confirm which of your own URLs are actually returning errors.

Fix with a redirect when the content still exists elsewhere.

A 301 redirect from the dead URL to its closest current equivalent preserves the link’s value automatically, without needing to contact anyone.

Reach out when a redirect target doesn’t exist.

If the content was removed entirely and there’s no reasonable page to redirect to, a short note to the site owner explaining the broken link and pointing them to a genuinely relevant current page on your site works the same way a broken-link-building pitch does — you’re just fixing your own link instead of inserting a new one.

Link reclamation SEO

Link reclamation is a process to be used as an ongoing audit, not a quick cleanup. Links that you earned years ago are constantly breaking silently as sites are redesigned. Since they happen so silently, these link equity leaks are slipping away gradually.

Run a check every quarter.

A quarterly pass through your own backlink profile catches new breaks before they accumulate into a large, tedious backlog.

Avoid redirect chains.

Redirecting a dead URL to another redirect, rather than straight to the final destination, dilutes the signal and slows crawling. Always point a 301 at the actual final page in a single hop.

Restore instead of redirect when the original page still has clear standalone value.

If an actually useful page went down (erroneously) restoring it to the original URL will restore the exact page links and response rankings that it had, not all of which will be preserved in a redirect to a merged or inaccurate page.

Frequently asked questions

Is broken link building still worth it in 2026?

Yes, it can be effective but only as part of a larger link building campaign rather than as an overarching strategy, as it relies on your competitors also having dead pages that are worth replacing thus the amount of opportunities tends to be variable.

How do I find broken links on a competitor’s site?

Verify the domain with an external backlink checking tool (ahrefs, Semrush, etc.) and see what pages are acquired an error 404. Find the external links that continue to point into those pages.

Do 404 errors hurt my SEO?

Not on their own. A 404 is the proper response for a page that has been removed, and Googles crawling documentation is clear that serving it doesn‘t damage your other pages. The danger comes from having valuable pages 404ing in error instead of forwarding them.

What’s the difference between broken link building and link reclamation?

Broken link building is when you find dead links on others’ websites and suggest your content as the replacement. Link reclamation is when you find backlinks to your site‘s content that are dead because one of your URLs is dead, and fix it with a redirect or a quick outreach note.

How do I know if a broken link opportunity is worth pursuing?

The page is ranked highly by the domain authority and traffic checker, the link was dofollow, and that the pasted content truly matches the contents of the dead page. Poor content match is the number one cause of a “powerful looking” opportunity failing to convert.

Where to start this week

Run your own domain through a backlink checker first, before chasing opportunities on anyone else’s site. Fixing your own broken backlinks with a handful of 301 redirects usually takes an afternoon and recovers link equity you already have, which is a faster win than any outreach campaign you haven’t started yet.