Broken Link Building: The 2026 Step-by-Step Guide
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Find a dead link on a site in your niche, build the closest matching replacement on your domain, and email the editor with the broken URL plus your link.
Best for: Sites with a real piece of content that already maps to a popular dead URL.
Reply rate: Reliably higher than cold link outreach because you are flagging a real problem.
Placement rate: Driven by intent match between the dead URL and your replacement.
Time to first link: A couple of weeks if you already have matching content.
Broken link building is the highest-trust outreach motion you can run.
You are not asking for a favor. You are flagging a 404 the editor would want to fix regardless. That asymmetry drives the response rates.
Why broken link building still works
- You are solving a problem. Editors care about user experience and SEO; broken outbound links hurt both.
- The replacement is editorial. Google treats it as a natural editorial link, not a paid placement.
- It scales with content. One strong replacement asset can earn dozens of links from sites that all linked to the same dead URL.
- It is fully white-hat. See our white hat link building guide for the full taxonomy.
The 7-step process
1. Pick the right starting URL
Two ways to start.
- Fast route. Take a popular dead URL in your niche (a sunset tool, a renamed domain, a discontinued product page) and pull every site linking to it.
- Slow route. Pick a target site you want a link from and scan its outbound links for 404s.
Start with the fast route. One sunset tool can hand you a long pre-qualified prospect list in one query.
2. Pull the backlink profile of the dead URL
Use a backlink index. The free options are limited; paid coverage matters here.
| Tool | Coverage | Notes |
|---|---|---|
| Ahrefs | Largest live index | Best for prospecting at scale |
| Semrush | Strong, with intent layered on | Use the Backlink Analytics module |
| Majestic | Deepest historical index | Good for finding old, forgotten links |
| Free checkers | Tiny but free | Workable for very small campaigns |
3. Qualify each prospect
Not every site that linked to the dead URL is worth pursuing. Filter on:
- Topical relevance. Same niche or one adjacent. Niche relevance is the dominant ranking factor here.
- Authority floor. DA/DR 25+ for most niches; lower in early-stage verticals.
- Real traffic. Pages with zero estimated traffic rarely get edited.
- Editorial freshness. The page has been updated within the last 18 months.
4. Build (or surface) the replacement asset
The replacement must match the original intent, not just the topic.
If the dead link pointed to a free template, your replacement should be a free template. Not a blog post about templates. Mismatched intent is the single biggest reason editors decline the swap.
If you do not already have a matching asset, weigh the lift against the prospect count. Small lists rarely justify building new content; large ones do.
5. Find the right contact
Email the editor or the named author of the page, not a generic info@. Use the methods in our find someone's email guide, or run our free email verifier on any address you uncover.
6. Send the pitch
Keep it tight. The editor is doing you a favor by reading.
Give them the dead URL, the replacement, and one sentence of why it fits. Two templates that work:
| Template | When to use |
|---|---|
| Direct. "Hi [name], the link to [old URL] in your post on [topic] returns a 404. We just published [new URL] which covers the same ground if it is helpful." | Resource pages, listicles |
| Soft. "Hi [name], reading your piece on [topic] and noticed [old URL] is dead. Thought you would want a heads up. If you are open to a replacement, [new URL] is the closest match I have seen." | Editorial articles where the link is incidental |
For more outreach copy, our link building email templates page has a dedicated broken-link section.
7. Follow up once
Send one follow-up roughly a week after the original. A second follow-up rarely moves the needle and risks a spam flag.
You found a dead link on a DA 60 marketing blog. The dead URL was a free outreach template; your closest matching page is a blog post on outreach strategy. What should you do?
Right. Intent match is what drives the swap. A template-shaped replacement converts; a strategy article gets ignored even on the same topic.
Editors swap on intent match. If the original was a free template, your replacement needs to be a free template. The strategy post is too far off; build the matching asset and pitch only when 50+ prospects link to the same dead URL.
How to find dead links faster
Three sources reliably surface dead URLs at scale:
- Sunset tools and shut-down brands. Track tools that go offline; their old domain still has thousands of inbound links. HARO's 2024 sunset (since revived under Featured.com) created a goldmine for anyone with a HARO-shaped replacement.
- Resource pages with the Check My Links extension. Run it on any resource page in your niche; broken outbound links light up red.
- Wikipedia
[dead link]tags. Wikipedia editors flag dead references inline. Filter by your topic area and you have a list of pages where Wikipedia explicitly wants a working URL.
A Wikipedia article in your niche has three references tagged [dead link]. What does that mean for outreach?
Right. Wikipedia rarely accepts cold pitches, but the dead URLs Wikipedia flags are gold for finding prospects elsewhere.
Wikipedia editors typically reject self-promotion. The win is using the flagged dead URLs as seeds: any non-Wikipedia site that linked to the same URL is a warm prospect.
Common mistakes to avoid
- Pitching every link. Dead links on irrelevant sites are wasted outreach. Keep niche relevance high.
- Mismatched intent. Topic match without intent match converts poorly.
- Generic pitches. Mass-templated emails hit spam filters and get ignored. Always personalize the first sentence.
- Skipping the editor lookup. A generic
contact@address routes to whoever clears the inbox, not the person who can edit the page. - No anchor text guidance. Suggest a natural anchor inline; do not let the editor invent one or skip the link.
Automate the boring half
MentionAgent runs the prospecting and outreach end to end while you focus on the replacement asset. $99/mo flat, no annual lock-in.
Start FreeBroken link building vs. other tactics
| Tactic | Reply quality | Effort per link | Best for |
|---|---|---|---|
| Broken link building | High, you are solving a problem | Medium | Sites with replacement-quality content |
| Unlinked mentions | Highest, the work is half done | Low | Established brands with existing mentions |
| Guest posting | Slow, gated by editorial review | High | Building topical authority and author bylines |
| Resource page outreach | Solid, when the page genuinely fits | Medium | Linkable assets like tools and guides |
| Cold link outreach | Low, no built-in reason for the editor to act | Low | High-volume prospecting |
Which sequence has the highest expected ROI for a B2B SaaS doing broken link building?
Right. Working backwards from a high-link dead URL means you build the asset only after you know the demand exists.
Always start with demand. Find the dead URL with the most relevant inbound links, then build a replacement to match. Building first is a coin flip; building second is a guaranteed match between asset and prospect list.
Tools that help
- Backlink data: Ahrefs, Semrush, Majestic, or any of these free backlink checkers for tiny lists.
- Email lookup: Hunter, Snov.io, Anymail Finder.
- Email verification: Our free email verifier, or Clearout for bulk.
- Outreach automation: Pitchbox, Respona, BuzzStream, or MentionAgent for hands-off mention-shaped outreach.
- Track what you earn: Linkody or Monitor Backlinks to catch losses early.
Frequently asked questions
What is broken link building?
A white-hat tactic where you find a dead link on a relevant site, build (or surface) a working replacement on your own domain, and email the editor asking them to swap the broken link for yours.
Does broken link building still work in 2026?
Yes. It remains one of the highest-reply-rate outreach motions because you are flagging a problem the editor would fix anyway. The lift comes from prospect quality, not novelty.
How do I find broken links on relevant sites?
Pull the backlink profile of a popular dead URL in your niche, run the Check My Links extension on resource pages, or filter Wikipedia for [dead link] tags in your topic area.
What reply rate should I expect from broken link outreach?
Reliably higher than generic cold outreach because the editor has a real reason to act. Your placement rate is gated by intent match between the dead URL and your replacement page.
Is broken link building safe with Google?
Yes. The link is editorially placed by the site owner; no money changes hands; the replacement is genuinely useful. It is one of the safest outreach tactics available.
Do I need a paid SEO tool to do broken link building?
Not for small campaigns. The free Check My Links Chrome extension finds dead outbound links on any page you visit, and Wikipedia surfaces dead references with [dead link] tags. Paid backlink indexes (Ahrefs, Semrush, Majestic) save time at scale because you can pull every site that linked to one dead URL in a single query.
Should I tell the editor exactly which paragraph the dead link is in?
Yes. Give the URL, the section heading, and the anchor text of the dead link. Editors fix what they can find; making the swap a 30-second job for them is the single biggest reason placements happen quickly.
Can I do broken link building on a brand-new site?
You can, but the win is smaller. Editors swap dead links for replacements they trust; new domains with thin content earn fewer "yes" replies. Build out the replacement page (depth, design, references) before pitching, and lean on niches where the dead URL is so popular that even a credible new site is the obvious match.