The short answer
Key takeaways
- The hook is value, not a favor: their page has a dead link, and you have the fix — that’s why editors say yes.
- Your replacement must genuinely match what the dead page covered; use the Wayback Machine to confirm before you pitch.
- Resource pages, niche directories, and competitor backlink profiles are where dead links worth chasing actually cluster.
- Keep it honest — a manual, individually-sent suggestion to fix a 404 is fully within Google’s guidelines; offering payment for the link is not.
Broken link building has survived a decade of link-tactic churn for one reason: it’s built on a real favor. Every page on the web slowly accumulates rot as the sites it links to move, rebrand, or shut down. When a page you’d like a link from points to a URL that now returns a 404, you have a legitimate reason to reach out — and a working replacement to offer. This guide walks the full sequence, end to end. It sits under our backlink outreach pillar, and pairs well with the deliverability mechanics in our cold email for link building guide.
Step 1 — Find the broken links
You’re hunting for pages that (a) link out to a URL that is now dead and (b) are pages you’d actually want a link from. Four reliable sources, roughly in order of yield:
- Competitor backlink profiles pointing at 404s. Pull a competitor’s — or a defunct site’s — backlinks from a link-index tool and filter for target URLs that now return a 404 or 410. These are pages already proven to link to content like yours; the link just happens to be broken now.
- Resource and “links” pages. Curated resource lists in your niche (“best tools for X”, “further reading on Y”) carry many outbound links and are rarely maintained, so they rot fast. Search operators like
intitle:resourcesorinurl:linksplus your topic surface them quickly. - Niche directories and association lists. Industry directories and membership rosters routinely link to member sites that have since folded, leaving dead entries you can offer to replace.
- The Wayback Machine, to see what the dead page was. Once you have a dead URL, look it up in the Internet Archive’s Wayback Machine to read what the page actually contained. That tells you whether you have — or can build — a true replacement, and it gives you the original anchor context for your pitch.
Step 2 — Qualify the opportunity
Not every dead link is worth chasing. Broken link building is a relevance game, not a volume game, so spend your filtering effort here. Keep an opportunity if it clears these bars:
| Signal | Keep if… | Drop if… |
|---|---|---|
| Link is genuinely dead | Target returns a real 404 / 410, not a temporary outage | It redirects or loads fine on retry |
| Topical relevance | The linking page is about your subject | It’s an off-topic page that happened to link out |
| Page is maintained | Someone clearly still owns and edits the page | It’s abandoned, with no reachable contact |
| Replacement fit | You have, or can credibly build, a true match | The dead page covered something you can’t honestly replicate |
Step 3 — Build or match the replacement content
This is the step most people skip, and it’s the one that decides whether you earn links or just annoy editors. The replacement you offer has to do the job the dead page used to do. Use the Wayback snapshot from Step 1 to see what was there, then either point to an existing page of yours that genuinely covers the same ground, or build one that does. “Close enough” loses: if the dead link was a free template and you offer a sales page, the editor sees a pitch, not a fix. When your replacement is a true upgrade — more current, more complete, better sourced — the swap becomes obviously the right call for them.
Step 4 — Find the right contact
Send to a person who can actually edit the page. For a blog or resource list, that’s usually the author or the site’s editor; for a company site, the marketing or web team. Check the page byline, the about/contact page, and the site’s footer first, then verify the address before sending — a bounced email is a wasted opportunity and a hit to your sending reputation. Our cold email link building guide covers finding and verifying contacts, and keeping your domain out of spam folders, in depth.
Step 5 — Pitch it helpfully
Lead with the favor, not the ask. The whole reason broken link building works is that you’re flagging a real problem on their page — so make that the subject of the email, and make the replacement an easy, optional yes. A short, specific message beats a templated one:
- Name the exact page and the exact dead link — show you actually looked.
- State plainly that the link 404s, so the value to them is clear and immediate.
- Offer your replacement as a suggestion (“if it’s useful”), never as a demand or a trade.
- Keep it to a few sentences; editors skim, and brevity reads as respect for their time.
- Personalize every send. If you’re scaling this, personalize at scale rather than blasting a single template — see the next section.
Why broken link building works
Most link outreach asks a stranger to do unpaid work for your benefit, which is why most of it is ignored. Broken link building inverts that: you start by pointing out something already wrong on their page and hand them the fix. That’s a favor, and favors get answered. It also keeps you firmly on the right side of Google’s rules — you’re not buying, swapping, or mass-generating links, just suggesting a genuine correction, which is exactly the kind of editorially-given link Google’s link spam policy is designed to protect. The only way to turn it black-hat is to offer something of value in exchange for the link, or to automate it into spam — so don’t.
Once you can reliably find and qualify dead-link opportunities, the bottleneck becomes outreach throughput. That’s where this connects to the rest of the cluster: scale the sending side with automated backlink outreach, find even more targets with a competitor backlink gap analysis, and keep your emails landing with the deliverability practices in our cold email guide.
Sources & further reading
Keep reading
Pillar guide
Automated backlink outreach
How to scale link-building outreach without burning your domain — targeting, personalization at scale, deliverability, and the editorial links that still move authority in 2026.
Backlinks · How-to
Cold email link building
How to run cold outreach for links that actually gets opened and replied to — list quality, personalization, sending infrastructure, and staying out of spam folders.
Backlinks · How-to
Competitor backlink gap
How to find the domains linking to your competitors but not to you, prioritize the realistically winnable ones, and turn the list into an outreach plan.