Most guides on broken link building are teaching a version of the tactic that stopped working around 2016. They tell you to scrape a giant resource page, find the dead links, fire off a template to a few hundred webmasters, and wait for the links to roll in. I’ve watched people run that exact playbook and get almost nothing back except unsubscribes.
The tactic itself is still good. The lazy version of it is dead. And the gap between the two is the whole point of this post.
I’ve run broken link building campaigns for clients across a lot of niches, and the ones that work share a pattern that has nothing to do with volume. So before you install a Chrome extension and start blasting, it helps to understand what you’re really doing and why it works when it works.
What is a broken link?
A broken link is a link that points to a page that no longer exists. You click it, and instead of the page you expected, you get a 404 error. Maybe the page moved without a redirect. Maybe the domain expired, someone deleted the content, or the URL was typed wrong in the first place. From the outside it all looks the same: a link that leads nowhere.
Broken links are everywhere. The web is constantly shedding pages. Companies rebrand and drop old URLs, blogs get abandoned, products get discontinued, and nobody goes back to update the thousands of articles that linked to them. Every one of those stale links is a small crack in someone’s site, and cracks are opportunities.
What is a broken link building strategy?
A broken link building strategy is the practice of finding those dead links on other people’s sites, then reaching out to suggest your own content as the replacement. You’re not asking for a favor out of nowhere. You’re pointing out something that is broken on their page and offering a fix that happens to point at you.
That is what makes it a white hat tactic. The link is editorially given. The site owner links to you because you solved a real problem for them, not because money changed hands or because you gamed something. That distinction matters more than it used to, and it’s worth being clear-eyed about whether backlinks still matter at all before you invest time here. They do, but mostly the earned kind, which is exactly the kind broken link building produces.
The value exchange is why the whole thing holds together. The webmaster gets a better page. Their readers stop hitting dead ends. You get a relevant, editorial backlink. When it works, everyone comes out ahead. When it doesn’t, it’s usually because one side of that exchange was missing.
Why broken link building still works, and where it doesn’t
Here’s the honest version. Broken link building works because it leads with something useful instead of an ask. That is rare in outreach, and it earns attention. But it is not the easy volume play a lot of guides still sell it as.
Three things have changed. Resource pages, the classic hunting ground, have decayed. A lot of them are abandoned themselves, which means the person who could fix the link isn’t reading their email anymore. Second, every SEO on earth has read the same broken link building tutorial, so the average webmaster has seen your exact pitch a dozen times. Third, the bar for what counts as a useful link went up. A dead link replaced by thin, obviously templated content doesn’t help anyone, and increasingly it doesn’t get placed.
None of that makes the tactic worthless. It makes it a relevance-and-relationship game instead of a numbers game. The campaigns I’ve seen work are narrow and specific: a strong replacement resource, sent to a small set of people who actually maintain their pages, with a note that reads like a human wrote it. Fewer emails, better targets, real content. That’s the trick.
How to find dead links
There are two ways to hunt that are worth your time. Most guides blur them together, which is where the confusion starts.
Finding broken links on pages in your niche
The first approach is to find pages in your niche that already link out to a lot of resources, then check those pages for dead links. Resource pages, “further reading” sections, and long reference-style posts are the usual candidates. You open the page, run a crawler or a browser extension over it, and it flags any links that return a 404.
For a single page or a small set of them, a free browser extension like Check My Links or LinkMiner does the job in a few seconds, while a broken link checker and broader seo tools such as Semrush and Ahrefs can help find broken links at scale alongside crawlers. For crawling an entire site’s outbound links, Screaming Frog is the standard tool. Once you have a list of dead links, you check whether any of them cover a topic you already handle or could handle well. Those are your targets. This is also how you find relevant sites, find resource pages, and review external links for broken link opportunities.
The catch with this approach is yield. You’ll check a lot of pages to surface a handful of dead links that are relevant to you. It works, but it’s slow, and it rewards patience more than cleverness.
Finding dead pages that already have backlinks
The second approach is the one I reach for first, because the math is better. Instead of hunting for broken links one page at a time, you find a single broken page that dozens of sites already link to, recreate that content, and then reach out to everyone linking to the dead.
This is where a link building tool earns its keep. In Ahrefs Site Explorer, enter a domain into the search bar for a competitor’s site, or a defunct site in your space, to find broken pages and pull every page that returns a 404 along with the number of backlinks pointing to it. A dead page with forty referring domains is forty outreach targets who have all already decided the topic is worth linking to, and some broken pages have over 50 backlinks, making them especially strong link prospects. You’re not convincing anyone the subject matters. You’re offering a live broken url where a dead one used to be.
To build a replacement that’s worth linking to, you need to know what the dead page contained. That is where the Wayback Machine comes in. Paste the dead URL into it, and checking the dead page’s url helps you understand what the dead resource covered before you create content or a replacement own page, and you can usually see the original page, which tells you what those forty sites thought was worth linking to. Then you build something at least as good, ideally better, and you have a real reason to reach out. You can also use competing websites or other sites to find dead pages, broken backlinks, linking domains, and existing backlinks pointing to the dead page.
Turning a dead link into a backlink
Finding the dead link is the easy half. Turning it into a backlink is where most campaigns fall apart, and it almost always comes down to two things: the outreach and the replacement content.
Start with the content, because the outreach depends on it. If your replacement is a thin post thrown together to justify an email, people can tell, and the pitch collapses. Creating replacement content means you need something strong enough to replace the broken page, not just imitate it. The replacement has to earn the link the dead page used to have. Usually that means it’s more current, more thorough, or just better organized than whatever was there before. You’re competing with a page good enough that people linked to it, so match that bar at minimum.
Then the outreach. Before sending anything, identify the right web admin, site owners, or website owners responsible for the page. You can use a tool like Prowly to find contact details for the people behind those pages. Keep it short and lead with the part that helps them by using a personalized broken link building email with a clear subject line: their page has a broken link. Tell them where it is, what it used to point to, and that you have a resource covering the same ground if they want a replacement with working links. Don’t oversell. Don’t attach a media kit. Broken link building outreach works better when you segment emails by linker type instead of blasting the same pitch to everyone. The webmaster doesn’t care about your traffic goals. They care that something on their page is broken and you just handed them the fix.
Before you send anything, run that target site through the same checks you’d use to vet any link building service. A link from a dead-on-arrival site with no real traffic isn’t worth the email, even when it’s free. Relevance and real authority are the point, not the raw count.
And set your expectations honestly. Most of these emails get ignored. A polite follow-up after three working days is reasonable if there’s no response. That’s normal, and it’s fine, because the ones that land are relevant, editorial, and permanent. A handful of good placements from a tight campaign beats a hundred pity links you’d be embarrassed to show a client.
Where broken link building fits in a real strategy
I’ll be straight about this, because it’s easy to oversell a single tactic. Broken link building is one of several link building tactics. It also sits alongside other link building methods like guest posting and content marketing, not as a strategy on its own, and treating it like one is how people end up with a spreadsheet full of low-value links and no real movement.
It works best as part of the same prospecting-and-outreach engine that drives everything else. Finding dead pages, judging site quality, and staying focused on target keywords when deciding what to build and which prospects to pursue; writing something worth linking to, sending a note that doesn’t get deleted: that’s the same work behind our whole approach to prospecting and link building, just aimed at a specific kind of opportunity. The broken link is the excuse to start the conversation. The quality of what you offer is what helps link builders earn backlinks and secure quality links, high quality links, high quality backlinks, and quality backlinks from authoritative websites.
Keep the standard high and broken link building stays firmly on the white hat side of the line. If you’re ever unsure where that line sits, Google’s link spam policies spell out what crosses it. The short version: links meant to manipulate rankings are the problem, and links earned by helping someone are not. A well-run broken link campaign is squarely the second kind.
The honest takeaway
So here’s what I’d actually do with this broken link building technique. Skip the mass-outreach version everyone teaches. Find a dead page in your niche that already has links pointing at it, look at other websites linking to it, use the Wayback Machine to see what made it worth linking to, build a better blog post, and send a short, human note to the people who linked to the original. Do that a few times with real care and you’ll earn a few links you’re proud of. That beats a hundred you have to disavow later, and while dead link building can work, a strong broken link building campaign is better when it centers on real broken link building opportunities instead of volume.