What Is Broken Link Building? SEO Glossary
Learn what broken link building means in SEO, why it matters, and how to use it.
What Is Broken Link Building?
Broken link building is a link building strategy where you find broken (dead) links on other websites and offer your own content as a replacement. When a page links to a resource that no longer exists (returns a 404 error), the site owner has a problem. You solve it by providing a working alternative, earning a backlink in the process.
This technique works because it provides genuine value to website owners. Instead of asking for something, you are helping them fix a problem while simultaneously earning a link to your site.
How Broken Link Building Works
The process follows a straightforward workflow:
Find relevant resource pages. Identify pages in your niche that link out to multiple external resources. These are commonly "best of" lists, resource directories, or roundup posts.
Check for broken links. Use tools to scan these pages for links that return 404 errors or lead to dead domains.
Create or identify replacement content. Either write a new piece that covers the same topic as the dead resource, or identify an existing page on your site that serves as a suitable replacement.
Reach out to the site owner. Send a concise email letting them know about the broken link and suggesting your content as a replacement.
Why Broken Link Building Is Effective
High success rate. Compared to cold outreach for guest posts or link requests, broken link building has higher response rates because you are solving a real problem. Nobody wants broken links on their site.
Scalable. Every website accumulates broken links over time. As sites shut down, pages get deleted, and URLs change, new broken link opportunities constantly appear.
Earns editorial links. The links you earn through this method are genuine editorial links placed within existing content, which are among the most valuable link types for SEO.
Improves the web. Unlike manipulative link building tactics, broken link building genuinely improves the internet by replacing dead ends with working resources.
Tools for Finding Broken Links
Several tools make it easier to identify broken link opportunities:
| Tool | Type | Best For |
|---|---|---|
| Ahrefs Broken Link Checker | Paid | Finding broken backlinks to competitor domains |
| Check My Links (Chrome extension) | Free | Scanning individual pages for broken links |
| Screaming Frog | Freemium | Crawling entire sites to find outbound broken links |
| Dead Link Checker | Free | Quick scans of individual URLs |
| SEMrush Backlink Audit | Paid | Identifying broken links at scale |
| Broken Link Builder | Paid | Purpose-built tool for this strategy |
Step-by-Step Process
Step 1: Find Target Pages
Search for resource pages in your niche using Google operators:
"your keyword" + "resources""your keyword" + "useful links""your keyword" + "recommended sites""your keyword" + inurl:resources"your keyword" + inurl:links
Step 2: Scan for Broken Links
Install the Check My Links Chrome extension and visit each resource page. The extension highlights broken links in red, making them easy to spot. For larger-scale efforts, use Ahrefs or Screaming Frog to find broken outbound links across entire domains.
Step 3: Evaluate the Opportunity
Not every broken link is worth pursuing. Prioritize opportunities where:
- The linking page has strong domain authority (DA 30+)
- The broken link topic matches content you already have or can create
- The page gets actual traffic (check with Ahrefs or SimilarWeb)
- The site is actively maintained (recent posts, updated copyright)
Step 4: Create Your Replacement
If you do not already have a suitable page, create content that matches or exceeds the quality of the original dead resource. Use the Wayback Machine (web.archive.org) to view what the original page contained and make sure your content covers the same ground.
Step 5: Send Outreach Emails
Keep your emails short, helpful, and specific. A strong outreach email includes:
- A specific mention of the broken link (include the URL and the page it is on)
- A brief note about why it matters (bad user experience)
- Your suggested replacement with a short explanation of why it fits
- No pressure or salesy language
Example template:
Subject: Broken link on your [topic] page
Hi [Name],
I was reading your [page title] and noticed that the link to [dead resource name] appears to be broken. It looks like the site may have been taken down.
I recently published a guide on [similar topic] that covers the same ground: [your URL]
It might make a good replacement if you are updating the page. Either way, just wanted to give you a heads up about the dead link.
Cheers, [Your name]
Common Mistakes to Avoid
- Targeting irrelevant broken links. Only pursue links where your content genuinely replaces what was there before.
- Mass emailing with generic templates. Personalize each outreach email. Mention the specific page and broken link.
- Skipping content quality. Your replacement content needs to be genuinely useful. A thin page will get rejected.
- Not following up. A single follow-up email after 5-7 days can significantly improve response rates.
- Ignoring low-authority sites. While high-DA sites are ideal, links from relevant niche sites with moderate authority still carry value.
Expected Results
Broken link building typically converts at 5-15% (meaning 5-15 out of every 100 emails result in a link). Results improve with better targeting, higher-quality replacement content, and more personalized outreach. A consistent effort of 20-30 outreach emails per week can generate 5-15 new backlinks per month.
Key Takeaways
Broken link building is one of the most effective and ethical link building strategies available. It works because you provide genuine value to site owners by helping them fix broken links. Focus on finding relevant opportunities, creating high-quality replacement content, and sending personalized outreach emails. The approach scales well and consistently earns editorial backlinks that improve your search rankings.
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