SEO Broken Link Building

Broken link building is a link acquisition strategy where you find dead links on other websites — links that point to pages that no longer exist — and offer your own relevant content as a replacement. It is a win-win approach: the website owner fixes a broken link on their site, and you gain a backlink.

Why Broken Link Building Works

Website owners do not want broken links on their pages. A broken link sends visitors to a 404 error page, which damages user experience and reflects poorly on the site. When you alert them to a broken link and provide a ready replacement, you solve their problem. Many respond by linking to your content out of genuine gratitude.

The Broken Link Building Flow

STEP 1: Find a broken link on an authoritative website.
        Example: niche-blog.com/resources links to
        [DEAD] oldsite.com/seo-checklist (404 error)

STEP 2: Create (or already have) content on the same topic.
        Your page: yoursite.com/seo-checklist

STEP 3: Email the site owner:
        "Hey, your link to [dead URL] is broken.
         I have a similar resource here: [your URL]
         You might want to update it."

STEP 4: Site owner updates the link to point to your page.

RESULT: You earn a backlink from an authoritative site.

How to Find Broken Links

Method 1: Check Competitor Backlinks in Ahrefs

Open Ahrefs Site Explorer, enter a competitor's domain, go to Backlinks, and filter by "404" under the "Link to target" column. This shows all pages on the competitor's site that return 404 errors but still have backlinks pointing to them. Those backlinks are now orphaned — the linking sites need a replacement.

Method 2: Check Resource Pages with Check My Links

Install the "Check My Links" Chrome extension. Open any resource page in your niche and run the extension. It highlights all broken links on that page in red within seconds. Resource pages are ideal targets because they contain many outbound links to check.

Method 3: Ahrefs Content Explorer

In Ahrefs Content Explorer, search for your topic and filter by "Broken" pages. These are pages with many backlinks that now return 404 errors. Any website linking to those dead pages is a potential outreach target for your replacement content.

Method 4: Wayback Machine Research

If you find a broken link, visit web.archive.org and enter the dead URL. The Wayback Machine shows you a cached version of what the page used to contain. Use this to understand exactly what content the dead page offered, then create a replacement that closely matches or improves upon it.

Creating Replacement Content

Sometimes you already have a page that matches the dead content closely enough. If not, create new content specifically to serve as the replacement. Your replacement page must genuinely cover the same topic as the dead page — site owners will check the quality before updating their link.

Writing the Outreach Email

Your outreach email should be friendly, helpful, and brief. Lead with the helpful information (the broken link) before making your request. Never sound demanding.

Broken Link Outreach Email Template

Subject: Broken link on [Page Name]

Hi [Name],

I was reading your [page name] page and noticed a link
to [broken URL] is returning a 404 error — it seems
that page no longer exists.

I recently published a comprehensive resource on the
same topic: [your URL]. It covers [brief description
matching what the dead page covered].

It might make a good replacement for the broken link.
Either way, just wanted to give you a heads up!

Best,
[Your Name]

Success Rates and Realistic Expectations

Broken link building typically has a 5% to 15% success rate. For every 100 outreach emails sent, expect 5 to 15 new backlinks. This sounds low, but because you are targeting authoritative pages with existing backlinks, each link earned carries significant value.

How to Scale the Process

Week 1: Find 50 broken link opportunities in your niche.
Week 2: Create or identify replacement content for each.
Week 3: Send outreach emails in batches of 20 per day.
Week 4: Follow up once (politely) with non-responders.

At 10% success rate on 50 emails = 5 quality backlinks per month.
Repeat monthly = 60 quality backlinks per year.

Tools for Broken Link Building

• Ahrefs: Best overall tool for finding broken backlink opportunities and competitor dead pages.
• Check My Links (Chrome extension): Free, instant check of any page for broken links.
• Screaming Frog: Crawl any website and export all broken links found.
• Semrush Site Audit: Flags broken outbound links across any domain you analyze.

Key Takeaway

Broken link building earns backlinks by solving a real problem for website owners. Find broken links using Ahrefs or the Check My Links extension, create matching replacement content, and send a friendly outreach email. Expect a 5–15% success rate and focus on resource pages and competitor dead pages for the highest-value opportunities.