Introduction: The Link Building Tactic Most People Overlook
Let me tell you something most SEO guides skip right past.
There are thousands of websites out there — right now, today — with broken links sitting quietly on their pages. Links that used to point to helpful content. Content that no longer exists. And every single one of those broken links is an opportunity waiting for someone smart enough to claim it.
That someone could be you.
Broken link building is one of the most effective, most ethical, and most underused link building strategies in SEO. It works because it helps everyone involved. The website owner gets a fix for their broken link. You get a high-quality backlink. And the internet becomes a slightly better place.
This guide will walk you through every single step — from understanding what broken link building actually is, to finding opportunities, creating replacement content, writing outreach emails that actually get replies, and measuring your results.
No fluff. No complicated jargon. Just a clear, honest, step-by-step process you can start using this week.
What Is Broken Link Building?
Broken link building is a white hat SEO strategy where you find links on other websites that no longer work — they point to pages that have been deleted, moved, or no longer exist — and then you reach out to the website owner to suggest your own content as a replacement.
Think of it like this.
You’re walking down the street and you notice a shop sign that points to a restaurant that closed down three years ago. You happen to own a restaurant nearby. You go up to the person holding the sign and say, “Hey, that place is gone — but mine is still open and serves the same kind of food. Want to update your sign?”
That’s broken link building in a nutshell.
The dead link is the closed restaurant. Your content is the one that’s still open. And the website owner is the person holding the outdated sign.
Why Does This Work So Well?
Because you’re not asking for a favour. You’re offering value.
Most link building outreach fails because it’s entirely selfish. “Hey, can you link to my article?” gives the website owner zero reason to say yes. But broken link building flips that dynamic. You’re pointing out a problem on their website and offering a solution. That’s a completely different conversation.
Website owners genuinely do not want broken links on their pages. Broken links make their site look abandoned. They frustrate readers. They can even hurt their own SEO. So when you come along and say, “I noticed this link is broken — here’s something that would work perfectly in its place,” you’re doing them a favour first.
Why Broken Link Building Still Works in 2025
You might have read somewhere that broken link building is “dead” or that it doesn’t work the way it used to. That’s simply not true.
What has changed is that it requires more effort and more personalisation than it did five years ago. Mass-blast outreach templates get ignored. But thoughtful, well-researched outreach still gets responses and real links.
Here’s why broken link building remains one of the most reliable strategies in your SEO toolkit:
It’s fully white hat. You’re not buying links. You’re not gaming any system. You’re genuinely helping website owners improve their content. Google has no issue with this.
The opportunity pool is massive. The internet is enormous, and content goes dead all the time. Websites get shut down. Articles get deleted. Domains expire. Every one of those events creates broken links across dozens or hundreds of other sites.
Your success rate is higher than cold outreach. When you reach out with a legitimate reason — a broken link on their site — you immediately have credibility. You’ve already shown you care enough to actually look at their content.
It builds real relationships. Many of the webmasters you contact will remember you. Some will become long-term contacts who link to your future content without being asked.
Step 1: Understand What You’re Looking For
Before you fire up any tools, you need to understand the types of broken link opportunities that are worth your time.
Resource Pages and Link Roundups
These are pages specifically created to link out to helpful content. Things like “Best Marketing Blogs,” “Top Tools for Small Business Owners,” or “Useful Resources for New Teachers.” These pages often have dozens of outbound links, which means a higher chance that some of them are broken.
Resource pages are gold for broken link building because the entire purpose of the page is to link out. The webmaster is already comfortable with the idea of external links. You’re just helping them keep the page up to date.
Blog Posts and Articles
Long-form content from three, five, or ten years ago often contains broken links. An article about “the best social media tools of 2018” is very likely linking to tools that no longer exist, have rebranded, or have completely changed their URLs.
Wikipedia Pages
Wikipedia is an interesting angle. Editors are constantly adding citations, and many of those citations link to sources that have since gone offline. If you can create a solid, well-sourced piece that covers the topic a dead Wikipedia citation was pointing to, you have a real shot at getting that citation updated to point to your content.
Step 2: Find Broken Link Opportunities
Now for the practical work. Here’s how to actually find broken links in your niche.
Method 1: Use Ahrefs or SEMrush
Both of these tools have features that let you analyse competitor websites for broken backlinks. This is powerful because those broken links were already pointing to content similar to yours.
In Ahrefs, go to Site Explorer, enter a competitor’s domain, then navigate to “Best by Links” and filter by “404 not found.” You’ll see all the pages on their site that are now returning a 404 error but still have other sites linking to them. These are your targets.
The logic is simple: if website A used to link to your competitor’s now-deleted article, they might be happy to link to your article on the same topic instead.
Method 2: Check Link Profiles of Dead Domains
Tools like Ahrefs also let you look at expired or deleted domains. If a website in your niche has shut down completely, other sites are still linking to pages on that dead domain. Every single one of those links is a broken link building opportunity.
Go to Ahrefs, enter the dead domain, and look at “Backlinks.” You’ll see every site that still links to it. Now you know exactly who to reach out to.
Method 3: Google Search with Specific Operators
You can find resource pages manually using Google search operators. Try searches like:
"your niche" + "useful resources""your niche" + "recommended links""your niche" + "helpful websites""your niche" + intitle:resources
Once you find these pages, use a tool like Check My Links (a free Chrome extension) or Screaming Frog to scan for broken links on the page.
Method 4: Screaming Frog
Screaming Frog is a desktop crawling tool that can scan an entire website and flag every broken link it finds. If you’re targeting a specific website — perhaps a major publication or a well-known blog in your niche — you can crawl their site and get a complete list of all broken external links.
The free version lets you crawl up to 500 URLs, which is plenty to start with.
Step 3: Qualify Your Opportunities
Not every broken link is worth pursuing. Before you invest time in creating content or writing outreach emails, you need to assess whether an opportunity is actually good.
Check the Domain Authority (or Domain Rating)
A backlink from a high-authority website is worth significantly more than one from a low-quality site. Use Ahrefs’ Domain Rating or Moz’s Domain Authority to get a quick sense of the site’s strength. As a rough rule, anything above 40 is worth your attention. Above 60 is excellent.
Check the Relevance
Is the website actually in your niche, or at least closely related? A backlink from a completely unrelated website won’t do much for you. Relevance matters enormously in modern SEO.
Check the Traffic
A website might have decent authority but almost no organic traffic. Use Ahrefs or SimilarWeb to get a rough sense of how much traffic the site receives. A link from a site with real traffic is more valuable because it can also send actual readers your way.
Check the Page Quality
Look at the specific page where the broken link appears. Is it a well-written, genuine piece of content? Is it indexed by Google? Does it have other good outbound links on it? Or does it look like a spam page with dozens of random links? Avoid the latter.
Check the Context of the Broken Link
What was the broken link originally pointing to? Can you tell from the anchor text and surrounding content? This will help you understand what kind of replacement content would make the most sense — and whether you already have something suitable or need to create it.
Step 4: Create (or Identify) Your Replacement Content
This is where many people cut corners, and it’s a mistake.
Your replacement content needs to be genuinely good. It needs to match — or preferably exceed — the quality of what the original link was pointing to. Otherwise, even if the website owner clicks your link and checks it out, they won’t make the switch.
Option A: You Already Have the Content
Go through your existing articles and pages. If you find a broken link pointing to a topic you’ve already covered thoroughly, you may not need to create anything new. Just make sure your existing content is up to date, well-formatted, and genuinely valuable.
Option B: You Need to Create Something New
If your site doesn’t have anything suitable, you’ll need to create it. This is actually a great opportunity because you’re essentially getting a brief from the internet. The broken link tells you exactly what people in your niche were reading and linking to. Create a better version of that.
A few principles for creating great replacement content:
Go deeper. If the original article was 800 words, aim for 1,500 to 2,000. Add sections it didn’t have. Include examples, data, and practical steps.
Update the information. If the original content was from several years ago, update all the statistics, tools, and references. Position your content as the current, authoritative resource.
Make it visually appealing. Use subheadings, bullet points, images, and clear formatting. Content that’s easy to read is content people are more likely to link to and share.
Add original insight. What can you add that the original didn’t have? Your own experience, a unique angle, a fresh case study? Something that makes your version worth citing.
Step 5: Write Your Outreach Email
This is where most broken link building campaigns fall apart. People either never send the email at all, or they send something so generic and robotic that it gets deleted in seconds.
Here’s the truth about outreach: website owners receive a lot of emails. Probably more than you think. They can spot a template from miles away. And when they spot one, they don’t respond.
What works is personalisation, brevity, and genuine helpfulness.
The Structure of a Great Broken Link Outreach Email
Subject line: Keep it short and specific. Reference the broken link directly. Something like: “Broken link on your resources page” or “Found a dead link in your [article title]” works well. It signals immediately that you’ve actually looked at their site.
Opening: Do not open with “I hope this email finds you well.” It doesn’t. Use a genuine, specific opener that shows you’ve actually read their content. One sentence is enough.
Identify the problem: Tell them exactly where the broken link is. Include the URL of the page and describe the anchor text or link so they can find it easily. Make this as simple as possible for them. The easier you make it, the more likely they are to act.
Offer the solution: Let them know you have content that covers the same topic. Share your URL. Say clearly why it’s a good fit. Don’t oversell it — just let the content speak for itself.
Close warmly: Keep it brief. Don’t beg. Don’t follow up three times in the same email. Just sign off naturally.
A Real-World Template (Adapt This, Don’t Copy It)
Subject: Broken link on your [page name]
Hi [First Name],
I was reading your article on [topic] and found it really helpful — especially the section on [specific thing].
While I was going through it, I noticed that one of your links appears to be broken. It’s under the anchor text “[anchor text]” and points to [dead URL]. Thought you’d want to know.
I actually have an article that covers the same topic — [your URL] — in case it’s useful as a replacement. No pressure either way, just thought it might be helpful.
Thanks for putting together such a solid resource.
[Your Name]
Notice a few things about this template. It’s short. It’s specific. It gives them something useful even if they don’t link back. And it doesn’t feel like a pitch.
The Golden Rule of Outreach
Be genuinely helpful first. The link is the potential reward, not the demand.
Step 6: Follow Up (The Right Way)
Many outreach responses come not from the first email but from a follow-up. That said, there’s a right way and a wrong way to follow up.
Wait at least five to seven business days before sending a follow-up. People get busy. Give them time.
Keep the follow-up short. One or two sentences at most. Something like: “Just wanted to bump this up in case it got buried. Happy to help if you need anything else.”
Only follow up once. If they don’t respond after two emails, move on. Sending a third, fourth, or fifth email will only irritate them and hurt your reputation.
Step 7: Track Your Outreach and Results
Once you’re running a proper broken link building campaign, you need to keep track of what’s happening. Otherwise, you’ll lose threads and miss opportunities.
At minimum, maintain a simple spreadsheet with:
- The URL of the page you’re targeting
- The broken link you found
- The date you sent your outreach email
- Whether you received a response
- Whether you got the link
This doesn’t need to be fancy. Even a basic Google Sheet works perfectly.
Over time, this data will tell you a lot. Which types of pages respond best? Which niches are most receptive? Which email subject lines get opened? You can use this to continuously improve your approach.
Tools like Hunter.io, Pitchbox, or BuzzStream can also help you manage outreach at scale if you’re running a larger campaign.
Common Mistakes to Avoid
Even experienced SEOs make these mistakes in broken link building campaigns. Learn from them before you start.
Targeting low-quality sites. A backlink from a spammy, low-authority website won’t help you and could actually hurt you. Quality always beats quantity in modern link building.
Sending generic templates. We’ve already covered this, but it bears repeating. Generic templates get ignored. Personalised outreach gets results.
Not checking your replacement content first. Before you send a single email, make sure your content is live, loads correctly, and is genuinely good. Sending someone to a broken or thin page destroys your credibility instantly.
Giving up too quickly. Broken link building takes time. A 10% response rate is actually considered good in cold outreach. Don’t measure your campaign by individual emails — measure it by volume and consistency.
Forgetting to follow up. A polite single follow-up can double your response rate. Don’t neglect it.
Targeting irrelevant sites. Relevance matters. A backlink from a food blog when you run a software company is near worthless. Focus on sites in your niche or closely adjacent ones.
How to Scale Your Broken Link Building Campaign
Once you’ve got the basics down and you’re seeing results, here’s how to scale up without losing quality.
Build a list of target websites in your niche. Use tools like Ahrefs, BuzzSumo, or even manual Google searches to compile a list of high-authority sites you’d love links from. Then periodically check each one for broken links.
Set up Google Alerts for your niche. When new content goes live in your niche and then later disappears, you can sometimes catch it early and be the first to reach out to the sites that linked to it.
Create a content hub. The more comprehensive content you have on your site, the more replacement options you’ll have for any given broken link. A well-stocked blog gives you something to offer for almost any opportunity you find.
Hire a VA for prospecting. If you’re short on time, you can train a virtual assistant to find broken link opportunities using the methods in this guide, then review and approve them yourself before writing outreach emails.
Measuring Success: What Good Results Look Like
Success in broken link building is not just about how many links you get. It’s about the quality of those links and their effect on your organic rankings and traffic over time.
Realistic benchmarks for a well-run campaign:
- Response rate: 5–15% of emails sent
- Link conversion rate: 30–50% of responses turn into actual links
- Timeline: Most links take two to six weeks to appear after outreach
Don’t expect overnight results. SEO is a long game, and broken link building is no different. But done consistently over six to twelve months, it can meaningfully move your domain authority and your rankings.
Final Thoughts: Why This Strategy Is Worth Your Time
Broken link building isn’t the flashiest SEO tactic out there. It won’t go viral. Nobody’s going to write a think piece about how you found a dead link and sent a polite email about it.
But it works. Quietly, consistently, and honestly.
It works because it’s grounded in something real: the internet is full of broken things, and you’re in the business of fixing them. Every website owner you help remembers you. Every backlink you earn raises your credibility in Google’s eyes. Every piece of content you create for a broken link opportunity makes your site more valuable to real human readers.
In an SEO landscape increasingly full of shortcuts that don’t last, broken link building is a strategy built to stand the test of time.
Start small. Find five broken link opportunities this week. Write five personalised emails. See what happens. The results might surprise you — and so might the relationships you build along the way.