Broken Link Building: The Complete 2026 Guide

You have a page worth linking to, but getting other sites to link to it feels like shouting into the void. Most outreach emails ask a stranger for a favour and give nothing back, so they get ignored or deleted. Broken link building flips that. You find a dead link on someone’s site, offer a working replacement, and hand them a fix they actually want. This guide walks you through the whole process, from finding broken pages to the outreach email that earns the link.

Key takeaways

• Broken link building means finding dead (404) links on other sites and getting the owner to swap them for a working link to your page.
• It still works because it solves a real problem for the site owner, and it earns editorial, in-content links rather than sidebar or footer links.
• The process runs in six steps: find, vet, analyse the dead page, create a better replacement, do outreach, then monitor.
• Replacement quality and personalised outreach decide whether you win the link. Mediocre replacements and mass emails fail.
• The same skill works in reverse as link reclamation: fixing the broken backlinks pointing at your own 404s.
• Treat it as one tactic in a wider off-page SEO plan, not your only one.

What is broken link building?

Broken link building is the practice of finding dead links on other websites and getting the owner to replace them with a working link to your equivalent page. A link is “broken” or “dead” when it points to a page that no longer loads, usually returning a 404 error.

The exchange works because everyone gains. The site owner fixes a bad link and stops sending readers to a dead end. Their readers get a working resource. You earn a backlink sitting inside relevant, existing content. That kind of editorial, in-content link tends to carry more weight than a link stuffed into a directory or a comment.

It is a white-hat tactic. You are not manipulating anything or paying for placement. You are pointing out a genuine fault and offering a genuine fix.

What causes broken links (and what happens when one breaks)

Links break constantly, and they build up quietly over the years as sites grow, move and get rebuilt. Before you can hunt them down, it helps to know what a broken link actually is and why so many exist.

What is a broken link (and what makes one)?

A broken link is a hyperlink that points to a page the server can no longer serve. Click it and you land on an error instead of the content you expected.

Most broken links return a 404 Not Found status code, which means the page cannot be found. A close cousin is the 410 Gone code, which says the page has been removed on purpose and is not coming back. A trickier case is the soft 404, where the page shows an error message to the reader but the server still reports a 200 “success” code. Redirect chains that loop or dead-end can break links too.

For broken link building, the plain 404 is what you are usually looking for. It is the clearest signal that a page has died and left its backlinks stranded.

The common causes of broken links

Broken links rarely come from one source. They pile up from many small events across the web:

• A page was deleted or unpublished without anyone setting up a redirect.
• The referring domain expired or went offline, taking its pages with it.
• A URL changed and no redirect was put in place to catch the old address.
• A CMS migration altered the URL structure, so every old link now points nowhere.
• A broken plugin or a coding error on the page mangled the link.
• A linked file was removed from the server, such as a PDF or a video.
• A typo or a missing character crept into the URL when it was first added.

The older and larger a site gets, the more of these accumulate. That is good news for you: every one is a potential opportunity.

Do broken links hurt your SEO?

Mostly they hurt in indirect ways. According to Google’s own guidance on 404 errors, the fact that some URLs on a site return 404s does not affect how that site’s working pages rank. Google treats 404s as a normal part of how the web works.

But there are real costs around the edges. Broken outbound links send your readers to dead ends, which is a poor experience. Broken links you never redirect can waste crawl efficiency. And when a backlink points to one of your own pages that has since died, you lose the link equity it was passing.

That last point is exactly why broken link building works. Every dead page with backlinks is a pool of link value that nobody currently owns.

Why broken link building still works in 2026

Every year someone declares a link building tactic dead. Broken link building keeps going because it is built on something that does not change: site owners want a functional site, and a dead link is a fault they would rather fix.

Demand for links has held steady too. Aira’s State of Link Building report surveys hundreds of SEOs each year and continues to find strong, ongoing investment in link building, with broken link building among the tactics practitioners keep using. It is not a fad tactic, but it is not effort-free either. The bar for doing it well has risen as webmasters have grown warier of low-effort pitches.

Treat it as a supporting tactic rather than your whole strategy. It pairs well with the rest of your SEO link building services work.

The benefits: editorial, relevant, proven-performance links

The links you earn this way tend to be the good kind. You are getting them from pages that already exist, already rank and already pull traffic, so the link sits on proven ground rather than a brand-new page with no history.

They are also contextually relevant. The link lands inside content on the same topic, embedded in the copy where a reader might actually click it. And because you are often replacing a link that once pointed to a competitor, you can quietly inherit link value that used to flow to someone else.

What to expect: realistic response rates

Set your expectations honestly. Broken link building is outreach, so most people you contact will not reply. What makes it worthwhile is that a well-run campaign, with a genuinely better replacement and a personal email, converts far better than cold outreach that opens with a request and offers nothing.

The trade-off is effort. Personalised, well-researched outreach takes time, and that time is the reason it beats the templated mass emails most site owners delete on sight.

How to do broken link building: the six-step process

The whole tactic comes down to six steps. Find broken pages worth pursuing, vet them, study the dead page, build a better replacement, pitch it, then keep an eye on the link. Here is the process in order:

1. Find broken pages worth pursuing.
2. Vet the link prospects.
3. Analyse the dead page with the Wayback Machine.
4. Create a replacement that is genuinely superior.
5. Do the outreach.
6. Monitor and maintain your new links.

Let’s walk through each one.

Step 1: find broken pages worth pursuing

There are several ways to find broken pages, and most of them need a backlink tool to see how many links point at each dead page. Use a few methods together rather than relying on one.

Find your competitors’ broken pages

Your competitors have dead pages, because everyone deletes and reorganises content over time. When they forget to redirect an old URL, its backlinks are left pointing at a 404.

In a backlink tool such as Ahrefs or Semrush, enter a competitor’s domain, open its best-by-links or top-pages report, then filter for pages returning a 404. Sort by referring domains so the pages with the most links rise to the top. Those are the dead pages worth rebuilding.

Find broken pages about a topic

Chasing one competitor at a time limits you to a handful of sites. A broader method is to search the whole web for dead pages on a given topic.

Some tools, such as Ahrefs’ Content Explorer, let you search a large index of pages, filter for broken ones, and set a minimum number of referring domains. That surfaces dead pages about your topic across thousands of sites at once, not just the competitors you already know.

Find broken outbound links on competing sites

You can also look at the links pointing out of a competitor’s site. Most sites link out to other pages, and some of those targets die over time.

Enter a competing domain into a backlink tool’s broken-links or broken-outgoing-links report. It lists the dead pages that site currently links to. Export the list, then check which of those dead URLs have the most backlinks of their own, since those are the pages worth recreating.

Find broken links on resource pages

Resource pages curate links to useful material on a topic, so they carry lots of outbound links and rarely get updated. That combination makes them a rich source of broken links.

Find them with Google search operators. Try patterns like these:

[keyword] inurl:resources
[keyword] intitle:"useful links"
[keyword] "helpful resources"

If you serve the Singapore market, narrow the search to local sites with a site operator. These work well for finding local resource pages:

[keyword] site:.sg
[keyword] site:.edu.sg
[keyword] site:.gov.sg

Then check each promising page for dead links using a free browser extension like Check My Links, and note which broken targets have backlinks worth chasing.

The Wikipedia “dead link” technique

Wikipedia flags its own dead references, which makes it a quick way to find widely-linked dead pages. Search Google like this:

site:wikipedia.org "[keyword]" intext:"dead link"

Open the Wikipedia entries you find and look in the references for links tagged as dead. Do not try to replace the link on Wikipedia itself, since those links are nofollow and editors remove anything that looks self-serving. Instead, take that dead URL and find the other sites that also link to it. Those are your real prospects.

Step 2: vet the link prospects

Not every broken link is worth your time. Before you build anything, check that a dead page is likely to lead to good links.

Check link quality

Look at the backlinks pointing to the dead page and judge their quality. Favour links that are dofollow, come from sites with genuine authority, and sit on pages with real organic traffic. Exclude spammy subdomains and very low-authority sites.

If you have used Moz’s Domain Authority in the past, the modern equivalents are Ahrefs’ Domain Rating (DR) or a similar authority score paired with a traffic check. A rough floor of DR 30 and up, with real traffic, keeps you focused on links that can actually move the needle. It also helps to screen out toxic or spammy links you would not want to inherit.

Check how many sites link to the dead page

One dead URL can be linked from many different sites. If 15 sites link to the same broken page, a single replacement gives you 15 outreach opportunities.

Use a best-by-links or batch-analysis report to count the referring domains on each dead page. The pages linked from many quality sites are the ones worth building content for.

Check why people linked (general vs deep links)

It pays to understand why people linked to the dead page in the first place, because that shapes both your content and your pitch.

General links recommend the whole resource without a clear reason you can see from the context. Deep links point to the resource for a specific, visible reason, such as a particular statistic or step. Deep links are more useful to you: they tell you exactly what to include in your replacement and give you a precise angle for your outreach. Scan the backlinks and their surrounding text to sort one from the other.

Step 3: analyse the dead page with the Wayback Machine

Before you write a replacement, find out what the dead page actually contained. Guessing leads to a mismatch that gets your pitch ignored.

Paste the dead URL into the Wayback Machine, the Internet Archive’s snapshot tool, and open the most recent working version. Study its format, its depth, who it was written for, and what is now missing or out of date.

Record what you find in a simple tracking spreadsheet. Useful columns are: the dead URL, the page linking to it, a short summary of the original content, the content gap you spotted, and your idea for the replacement. This prep is dull, but it is what separates a pitch that lands from one that gets deleted.

Step 4: create a replacement that is genuinely superior

“Roughly equivalent” loses. To convince a site owner to swap the link, your page needs to be clearly better than the dead one, not just a near-copy.

Match the original intent, then beat it

Start from the Wayback snapshot and rebuild the same purpose the original served. Cover what it covered, then go further with current data, clearer explanation and more useful detail. Do not copy the old page word for word. Use it as a brief, not a template to duplicate.

Bake in the “linkable” points

Remember the deep-link reasons you recorded in step 2. Those are the specific things people valued about the dead page. Make sure your replacement addresses each of them, so that when you reach out, your angle matches exactly why they linked in the first place.

Replacement content formats that earn links

Some formats earn links more readily than a plain blog post. Depending on the topic, consider building your replacement as one of these:

• An ultimate guide that goes deeper than the original.
• Original data or a study, even a small or anonymised one.
• An interactive tool or calculator that offers genuine utility.
• A template the reader can copy and use.
• An updated or expanded list that is more thorough and current.
• Custom diagrams or visuals rather than stock images.

Step 5: do the outreach

Outreach is where most campaigns are won or lost. The finding and building matter, but a weak email wastes all of it. Personalise every message.

Find the right person to contact

Your email needs to reach whoever can actually edit the page. That is usually the author, the editor or the webmaster, not a general inbox.

Check the page for an author byline, then look at the site’s staff or contact page for a specific person listed as an editor, content manager or webmaster. A direct message to the right person beats a generic hello@ address every time.

Write the pitch (structure and email template)

Keep the email short and make it easy to say yes. A pitch that works usually has five parts: a specific, non-salesy subject line; a personalised opener that proves you read their page; a clear report of the broken link; your replacement offered rather than demanded; and a brief, no-pressure close.

Here is a template you can adapt:

Subject: Broken link on your [page topic] page
 
Hi [Name],
 
I was reading your guide on [specific topic] and noticed one of
the links in the [section] section points to a page that's now
returning a 404 error: [broken URL]
 
Since that resource is gone, you might want a replacement. We
recently published a guide on the same topic that covers
[specific benefit]: [your URL]
 
Either way, thought you'd want to know about the dead link.
No pressure at all.
 
Thanks for putting the page together,
[Your name]

Segment deep vs general linkers

You do not have to send everyone the same email. Group your prospects by the deep-link reasons you found earlier, and write a short template for each group that speaks to why they linked. For general linkers, where no specific reason is visible, fall back on a version that leads with your replacement’s overall improvements.

Follow up without being annoying

People are busy and emails get buried, so one polite follow-up is reasonable. Wait about five working days, then send a short note in the same thread asking whether they had a chance to look. One follow-up is usually enough. After that, move on rather than pestering.

Step 6: monitor and maintain your new links

A placed link is not a permanent one. Pages get redesigned, sites migrate, and links quietly disappear.

Set up new and lost backlink alerts in your backlink tool so you hear when a link drops. Audit your profile on a regular schedule, monthly for most sites, and chase down anything lost to a migration on the linking site. To see referral traffic from your new links, use the reports in Google Analytics 4, since the older Universal Analytics referral views have been retired.

Broken link reclamation: win back your own (and clients’) lost links

Broken link building has an easier-win cousin that most guides skip: reclaiming the links pointing at your own dead pages. Instead of hunting for other people’s broken links, you fix the ones that are already costing you.

Over time, some of your own pages get deleted or moved, and any backlinks pointing at them start returning a 404. That link value is sitting there, wasted, until you recover it. The fix is usually quicker than outbound broken link building because the linkers already chose to link to you once.

Start by crawling your own backlink profile for links that point to error pages on your site. For each one, either restore or redirect the dead page to a relevant live URL, or email the linking site and ask them to update the link to your working page. If you run regular site audits, broken backlink reclamation fits neatly into that routine.

Broken link building in Singapore: a local playbook

The general method works anywhere, but a few local moves make it far more effective for a Singapore audience.

Start your prospecting with local search operators. Pair your topic with `site:.sg`, `site:.edu.sg` and `site:.gov.sg` to surface Singapore resource pages, university link lists and government-adjacent references. Local directories, trade associations and .edu.sg resource pages are all good hunting grounds for dead links that Singapore sites still point to.

Local relevance also lifts your reply rate. A .sg webmaster is more likely to link to a replacement that speaks to their audience, so weave in local context where it fits, such as CPF, GST or Singapore-specific regulations. A genuinely relevant local page can beat a higher-authority foreign one for these prospects. If you serve nearby customers, this dovetails with your wider local SEO work.

Broken link building in the AI Overview era (GEO)

Search results for many queries now open with an AI Overview, and the same shift is showing up in tools like ChatGPT and Perplexity. That changes what a good link building strategy is quietly working towards.

The link itself still matters for classic rankings. But the editorial links you earn through broken link building also strengthen the signals that get a page cited in AI answers. A page that authoritative sites reference is a page an AI model is more likely to treat as trustworthy and surface.

To make your replacement content citable, write it the way these systems reward: lead with a clear, self-contained definition, structure the page with clean headings, and back claims with primary sources. Adding structured data helps too. This is where broken link building overlaps with AI SEO and with newer signals like llms.txt and AI crawlers: the better and better-referenced your page, the more of both worlds it wins.

The best tools for finding broken links

You do not need every tool below, but knowing the full toolkit helps you pick the right one for your budget and scale. Here is the realistic set, from all-in-one platforms to free checkers.

Ahrefs

A paid all-in-one SEO platform. Its Site Explorer, best-by-links report and broken-links report are built for finding dead pages with backlinks, which is the core of this tactic.

Semrush

Another paid platform with a Backlink Audit tool and a Site Audit that flags broken external links. It covers the same finding and monitoring jobs as Ahrefs.

Check My Links

A free Chrome extension that scans any page you are viewing and highlights broken links in red. Best for quick, manual checks of resource pages.

Screaming Frog SEO Spider

A desktop crawler that can crawl a site or a list of URLs and report broken links in bulk. Free for small crawls, paid above a set limit.

Sitebulb

Another desktop crawler and auditing tool that surfaces broken internal and outbound links, with visual reports. Useful for larger audits.

Google Search Console

Free, and best for your own site. Its indexing and page reports show which of your URLs return errors, which is where broken link reclamation starts.

WordPress Broken Link Checker plugin

A free plugin for WordPress sites that monitors your posts and pages for broken links and flags them as they appear.

Free online checkers

Standalone web checkers like Dr. Link Check, and older desktop tools like Xenu’s Link Sleuth, crawl a site for dead links without a subscription. Handy for one-off checks.

Common mistakes to avoid

A few predictable errors sink most broken link building campaigns. Watch for these.

Offering an irrelevant replacement

If the dead link pointed to a guide on one topic, do not pitch your page on a different one. Relevance is the whole reason the tactic works, so a mismatched replacement gets ignored.

Chasing low-authority or zero-traffic links

A link from a tiny, trafficless site rarely moves your rankings. Spend your effort on dead pages whose backlinks come from sites with real authority and real visitors.

Skipping the Wayback and “why did they link?” analysis

Pitch without knowing what the dead page held, or why people linked to it, and your replacement will miss the mark. The research in steps 2 and 3 is what makes the outreach land.

Sending identical mass emails

Site owners can spot a templated blast from the first line. A smaller batch of genuinely personalised emails will beat a huge run of identical ones.

Ignoring mobile experience on your replacement page

Since Google now works from the mobile version of a page, a replacement that renders badly on a phone gives webmasters a reason to say no. Check your page on mobile before you pitch it.

Pursuing dead or abandoned sites

If a site clearly has not been touched in years, its owner is unlikely to fix a broken link for you. Note it and move on to a maintained site.

Final thoughts

Broken link building rewards patience and quality over volume. When you find the right dead pages, build something genuinely better, and reach out like a helpful human, you earn links that sit on relevant, established pages and keep paying off.

It works best as one part of a broader plan rather than a standalone trick. If you would rather hand execution to a dedicated team, partnering with an SEO agency Singapore businesses trust gives you end-to-end link acquisition coverage. Either way, start small, track what works, and refine from there.

Frequently Asked Questions