Broken link building: what it is and how to do it

Broken link building: what it is and how to do it

Broken link building means finding dead links on other websites, creating or offering a relevant live replacement, and asking the site owner to swap your page in. It is still worth doing when the broken page has real topical fit and useful backlinks. It is not worth treating as easy outreach. Reply rates are usually low and variable.

Short summary

• A broken link points to a missing, moved or unavailable page, file or resource.
• Broken link building works best when you replace a dead resource with something that genuinely helps the linking page.
• The useful targets are usually resource pages, old guides, outdated citations, tool roundups and competitor pages with backlinks.
• Third-party metrics such as Domain Authority can help you sort prospects, but Google does not use DA as a ranking score.
• Expect most prospects not to reply. A good campaign wins a minority of the sites it contacts, so selection matters more than volume.

What is a broken link?

A broken link is a hyperlink that no longer takes users to the intended destination. The linked page may have been deleted, moved without a redirect, renamed, blocked, timed out or replaced by a file that no longer exists.

When a browser or crawler requests that URL, the server may return an HTTP response code such as 404 Not Found or 410 Gone. Both tell the visitor that the requested resource is not available at that address. For users, the result is simple: they expected a useful page and got a dead end.

You can split broken links into two practical groups:

• Broken outgoing links: links from your site to pages that no longer work.
• Broken incoming links: links from other websites to pages on your site that no longer work.

Both are worth fixing, but they lead to different jobs. Outgoing links are a content maintenance issue. Incoming links are usually a redirect, reclamation or replacement-content issue. Broken link building focuses on a third case: other websites linking to dead pages that you could replace with a better live resource.

What is broken link building?

Broken link building is a white hat link acquisition tactic when it is done around relevance and genuine page improvement. You find a dead link on another site, work out why that site linked to the old resource, create or identify a live replacement, then contact the person who can edit the page.

The exchange is not "give me a backlink because I found an error". The better pitch is: "This page links to a resource that no longer works. Here is a live replacement that covers the same job for your readers."

That distinction matters. A site owner does not owe you a link because you spotted a 404. They may be busy, they may not see the email, or they may prefer to remove the link rather than replace it. The tactic earns its place when your replacement is specific enough that swapping it in is the easiest sensible fix.

It can work for commercial sites, publishers, universities, charities, associations and local organisations. Academic and public-sector pages can be relevant in some niches, so guides to build authoritative .edu backlinks and .gov backlinks can be useful context. Still, the domain ending is not the prize by itself. A relevant page with a real audience beats a random high-metric page that happens to sit on a nice-looking domain.

Is broken link building worth it?

It depends on the gap between effort and likely value.

Broken link building is worth testing when the dead page has backlinks from relevant sites, the old content has a clear purpose, and you can produce a replacement that deserves to be cited. It is also useful when you already have a strong guide, tool, study or evergreen page that could replace several dead references without heavy new writing.

It is less attractive when you need to create a new asset for every prospect, when the old page was only loosely related to your business, or when the linking pages are thin directories with little editorial care. In those cases, you can burn hours collecting URLs that never had much value. That is the kind of spreadsheet that looks productive until it asks for results.

We should be blunt: most prospects will not reply. Some will remove the dead link and ignore your replacement. Some will update the page months later. Some will say yes. Prospect quality is the whole game. You are not trying to email the internet; you are trying to find the few pages where your replacement is the neatest fix.

What causes broken links?

Broken links usually come from ordinary site changes rather than dramatic technical failures. The causes are boring, which is exactly why they spread.

Deleted pages

A page is removed, but links to it stay live. This often happens when old blog posts, products, event pages, PDFs or campaign pages are retired without a redirect plan.

Renamed or moved URLs

A page title changes, a slug changes, or a site migration moves content into a new folder. If the old URL is not redirected, any external links pointing to it break.

Site restructures

Large redesigns and CMS migrations can break internal and external links at once. Content gets merged, categories change, and old URLs get missed.

Typos and formatting errors

Extra slashes, copied punctuation, missing brackets, uppercase/lowercase mismatch on some servers, and pasted URLs with stray characters can all create dead links.

Domain changes

Rebrands, mergers, expired domains and moved subdomains can break whole groups of links. If redirects are incomplete, links that once worked can fail across many pages.

Removed files

Some links point to PDFs, spreadsheets, images, downloads or hosted documents rather than HTML pages. When those files are deleted or moved, the link can break even though the main site still works.

Blocking, timeout or server issues

Not every failed link is a deleted page. Some fail because a server times out, a host cannot be reached, a request is blocked, or a response is malformed. These are weaker prospects because the owner may not need a replacement page. Confirm the URL is truly dead before you pitch.

The benefits of broken link building

The main benefit is a reason for an editor to make a change.

Better contextual links

If a page already linked to a resource on your topic, it has already shown editorial interest. You are not asking the site to invent a reason to mention you. You are giving it a working option where a dead citation already exists.

That does not mean any high-metric site is a good prospect. Domain Authority, or DA, is Moz's third-party 1-100 predictive metric. It can help compare domains inside Moz's system, but Google does not use DA as a ranking score. Treat DA, DR and similar metrics as sorting aids. Then judge the page itself: relevance, traffic potential, editorial quality and whether the link would sit in useful context on an authoritative website.

Cleaner outreach angle

Cold link outreach often starts with a favour request. Broken link outreach starts with a page problem. That gives you a cleaner opening, as long as the fix is real. Your email can be short because the page itself explains the reason for contact.

Useful content prompts

Dead pages show you what people used to cite. If several sites linked to an old statistics page, glossary, calculator, checklist or tutorial, that is a hint that the topic had link demand. You can use that clue to build something current and better.

Relationship potential

Some editors appreciate useful maintenance notes. A polite broken-link email can start a relationship that later leads to another mention, a guest contribution or a content partnership. Do not bank on that outcome.

Competitive discovery

Broken pages in competitor backlink profiles can reveal publishers, resource pages and associations you had not found through normal link building strategies. Even when the outreach fails, the prospect list can improve your view of the niche.

The disadvantages and limits

Broken link building has a neat theory and messy execution.

Low and variable replies

The biggest limit is attention. Editors and site owners get a lot of email. Many old resource pages are neglected. Some contact forms are dead. Some pages are owned by teams that have no reason to prioritise your suggestion. So yes, you can win links this way. No, most outreach will not turn into a link.

That is why the campaign should be judged on the cost of finding each good prospect, the cost of creating the replacement, and the value of the few links that land. If those numbers do not make sense for your niche, use another tactic.

Replacement content takes work

A weak replacement rarely works. If the dead page was a detailed guide, your thin blog post will not be a fair swap. If the old link supported a specific statistic, your general overview will not help the editor.

You often need to reconstruct what the dead page used to do, then improve the answer without copying it. That can mean new examples, fresher references, better formatting, clearer definitions or a more current tool. The time cost is real.

Some dead links are not opportunities

A dead link on an abandoned page is just a dead link on an abandoned page. If the site has no active editorial team, no contact route and no recent updates, even a perfect replacement may go nowhere.

You should also avoid prospects where the dead page was a direct competitor, a private file, a login-only resource or something your page cannot honestly replace. A forced fit is easy to spot from the receiving end.

How to find broken-link opportunities

We start with pages that already have backlinks. A random dead outbound link on a tiny page may be worth fixing for the site owner, but it is unlikely to earn you much. A dead page with several relevant referring domains may give you multiple pages to contact with one replacement asset.

Use competitor backlink tools

In Ahrefs, Semrush and similar tools, the exact labels change over time, but the workflow is stable:

1. Enter a competitor domain or a competing page.
2. Look for reports that show broken backlinks, broken pages or indexed pages with errors.
3. Filter for 404-style URLs or pages that no longer resolve.
4. Sort by referring domains to find dead pages that attracted links.
5. Open the linking pages and read the surrounding context.

If you use Ahrefs, this Ahrefs' free link checker context can help with the basic toolset, though paid workflows usually make scale easier. In Semrush, start with competitor pages and Site Audit or Backlink Analytics features. A basic search for keywords process is enough to build the first competitor list if you do not have one yet.

The tool report is only the first filter. We still need to check whether the dead page topic fits your site and whether the linking page is worth contacting.

Search for resource pages

Resource pages are a natural fit because they exist to point readers towards useful references. They are also often old, lightly maintained and full of outbound links. That combination creates plenty of dead citations.

Try search operators such as:

• topic intitle:resources
• topic intitle:links
• topic inurl:resources
• topic inurl:links
• topic "useful resources"
• topic "recommended reading"

Then open the page and check the outbound links with a browser extension or SEO toolbar. Check My Links can be useful for one-page checks. Ahrefs SEO Toolbar and similar tools can also flag broken outbound links while you review the page.

Do not pitch every resource page with a red link. Look for pages where your replacement belongs in the same section as the dead URL. If the page is about local grants and your replacement is a national SEO guide, that is not a match. If the page is a marketing resources list and the dead link was an old technical SEO explainer, you have a better starting point.

Look for outdated citation pages

Old "best tools", "statistics", "studies", "templates" and "guides" pages can attract links long after the original URL dies. If your site can publish a current version, you may be able to contact the pages that still cite the old one.

Use cached snippets, page titles, anchor text and archived-page tools to understand what the old page covered. You are not trying to clone it. You are trying to answer the same reader need more clearly.

Use the Wikipedia dead-link route carefully

Wikipedia pages sometimes mark dead external links, and those dead references can point to resources that other sites also cited. The direct Wikipedia link is usually not the goal. The better use is discovery: identify the dead reference, then use backlink tools to find other pages that linked to the same URL.

If you work with this method, read the rules around Wikipedia links and external references. Relevance matters. A replacement that exists only to capture link equity is likely to be removed.

Check your own lost backlinks

Broken link building is usually framed around other people's dead pages, but your own lost links deserve attention first. If a publisher once linked to your page and the URL now fails, you may be able to recover the value with a redirect or a short update request.

We would put that closer to link reclamation than new prospecting, but it belongs in the same maintenance routine. Recovering a link you already earned is often less painful than persuading a stranger to add a new one.

How to assess a prospect

Before you create content or send email, ask four questions.

Does the linking page still matter?

Check whether the page is indexed, updated, visible in search, linked internally, and written for a real audience. A neglected page can still pass value, but an active page has a better chance of being edited.

Why did it link to the dead page?

Read the sentence around the link. Was the dead URL used as:

• a definition
• a statistic
• a tutorial
• a tool
• a downloadable template
• a citation for a claim
• a general recommended resource

Your replacement has to match that reason. If the old link supported a statistic, a broad opinion piece will not do the same job. If the old link was a beginner guide, a dense product page will feel off.

Can you improve the replacement?

A near-match is not always enough. Give the editor a reason to prefer your page. That might be a clearer structure, current examples, better screenshots, fresher data, cleaner definitions or a working download.

Do not fake old-page equivalence. If you cannot build something that serves the same reader, skip the prospect. The best outreach email in the world cannot make a poor fit useful.

Who can actually edit the page?

Find the person most likely to own the content. For a small blog, that may be the author. For a company site, it may be the content manager. For a university or association page, it may be a department administrator.

Generic inboxes can work, but they are slow. A named editor or content owner gives you a better chance. Keep your first email helpful and short; nobody asked for a thesis with a broken URL attached.

How to create the replacement page

You have two options: use an existing page that already fits, or create a new asset for a set of similar dead links.

An existing page is faster. It works when the dead resource covered a topic you already answer well. Check the heading, search intent, depth, examples and freshness. If the fit is close but not perfect, update your page before pitching.

A new page is worth it when one dead URL has several good linking pages, or when the topic sits close to a page you want to grow. Build it around the job the old resource did. If the old page was a checklist, make a better checklist. If it held a data point, use a verified current source or leave the number out.

You can use the dead page as a clue, not as a template to copy. Rewriting someone else's old page with a new logo is not useful and may create legal or quality problems. The safer aim is to serve the same audience better.

Also decide where the link should point. A homepage is rarely the best replacement. A focused guide, resource, tool, glossary page, case study or service page usually gives the editor a clearer reason to link. For existing-content placements, Curated Links (Niche Edits) are a separate route to relevant in-page links, but broken link building needs the replacement page to make sense on its own.

What real outreach looks like

We want broken link outreach to be short, specific and useful. The site owner needs to understand the problem, verify the URL, and decide whether your replacement helps. Anything beyond that is friction.

A simple first email can look like this:

Subject: Broken resource on your topic page

Hi Name,

I was reading your page title resource page and noticed the link to dead page title no longer works. It currently leads to dead URL.

This live page covers the same topic and may be a useful replacement: your URL.

No pressure either way. I thought it was worth flagging because the page is still a helpful resource.

Thanks,

Name

That is enough for a basic pitch. If the link context is specific, add one line explaining why your page matches it. Do not open with flattery. Do not ask for exact anchor text. Do not attach files. Do not pretend the editor's page is broken beyond repair because one citation failed. Do not claim Google has stopped crawling the page or that its value has dropped for that reason — you cannot see that, and you do not need it; stick to the observable point that the old link no longer works for readers.

For a deep-link pitch, add one specific fit line: "Your article cites the old resource in the section about specific point; this replacement explains the same point and includes specific useful element."

Follow up once if the prospect is strong. Wait long enough that you are not simply nudging someone who has not had lunch yet. A short follow-up can say:

Hi Name, quick follow-up on the dead old resource link on page title. The replacement is here if helpful: your URL. If you prefer to remove the old citation instead, no worries.

Then stop. If there is no reply, move on. The opportunity cost of chasing one silent page is usually higher than finding the next strong prospect.

Broken link building best practices

1. Start with relevance, not metrics

Metrics help you sort a list, but relevance decides whether the email makes sense. A lower-metric niche page can be more useful than a high-metric page where your replacement feels bolted on.

2. Group prospects by dead URL

If one dead page has several referring domains, you can create one replacement and tailor each email. This is usually more efficient than building a different asset for every single broken link.

3. Check the live page manually

Do not trust tool exports blindly. Open the linking page. Click the dead URL. Read the surrounding copy. Confirm the page is not temporarily unavailable, blocked in your region or already fixed.

4. Match the link reason

If the old link was a definition, give a definition. If it was a stats source, provide a current verified number or do not pitch it. If it was a downloadable file, consider whether a downloadable asset is needed.

5. Keep the email low-pressure

You are helping with a page issue, not demanding a favour. Make the edit easy, let the owner choose, and avoid language that implies their SEO is doomed if they do not accept your link.

6. Provide a near-perfect replacement

The closer the replacement, the easier the decision. Match the topic, format and depth of the original resource where it matters, then improve freshness, clarity and usability.

Many campaigns fail here. They find a dead page about one narrow problem and pitch a generic service page. Sometimes a service page is the right destination, but only when the old link pointed to a commercial solution or a buyer-focused resource. Most editorial citations need an informational replacement.

7. Be honest about scale

Broken link building can scale, but only after you have a repeatable prospecting pattern. A niche with many old resource pages may produce targets. A narrow B2B niche with few publishers may not. Do a small test before committing weeks of new content work.

8. Avoid dead sites

If the whole site looks abandoned, skip it. No recent posts, no working contact route, broken navigation and stale copyright years are all signs that nobody is coming to edit your link.

9. Use alternatives when they fit better

Sometimes the better route is a guest contribution, a digital PR pitch, a direct content partnership, or a normal resource-page suggestion. Guest posting can make sense when the host site wants original content rather than a replacement citation.

Old Help a Reporter Out (HARO) playbooks also need care. HARO ran as Connectively until Cision closed that platform in December 2024, then relaunched under new owner Featured.com in April 2025 as a free journalist-request service. It works differently from the versions those old playbooks assumed, so treat it as digital PR, not a broken-link substitute.

10. Track outcomes, not activity

Record the dead URL, linking page, contact, replacement page, outreach date, follow-up date, reply, result and live link. After a small batch, review which prospect types actually moved. Stop sending weak patterns just because they are easy to find.

Alternatives to broken link building

Broken link building is useful, but it is not always the best route.

Curated links and niche edits

Curated links, often called niche edits, place a relevant link into an existing article where the citation adds value. They do not require you to recreate a dead page first.

The difference is intent. Broken link building starts with a dead citation. Curated placement starts with a live page that could be improved by a relevant addition. Both require editorial fit.

Guest posts

Guest posting gives you more control over the topic and surrounding context. It can be useful when the site wants fresh content rather than a resource replacement. The risk is quality. Large-scale, low-value guest posting with keyword-rich links falls into the kind of link abuse Google warns about, so the content has to stand on its own.

Link reclamation

Link reclamation recovers links you have already earned. Common jobs include fixing backlinks to deleted URLs, asking for a brand mention to be linked, or updating links that point to old assets.

Content repurposing

If you already have a strong guide, dataset, video, checklist or visual resource, repurposing it can create more natural citation points. The aim is to make the useful part easier to cite.

Community and profile links

Community links, forum answers, Q&A profiles and social links can support discovery and referral traffic, but they should not be treated as a replacement for editorial links. A natural link profile often contains a mix of followed, nofollow, branded, editorial and community links. The mix should come from real activity, not a ratio target.

Examples of broken-link errors

A dead link does not always show the same message. For a fuller technical breakdown, read our guide to HTTP error codes.

• 404 Not Found: the server cannot find the requested URL.
• 410 Gone: the resource has been removed.
• 400 Bad Request: the server cannot process the URL or request format.
• Timeout: the request takes too long to complete.
• Bad host: the hostname cannot be reached or does not resolve.
• Reset or empty response: the connection fails or returns no usable data.

A simple broken-link-building workflow

We use this as a compact process:

1. Pick a topic close to a page you want to strengthen.
2. Find competitor pages, old resources and resource pages in that topic.
3. Use Ahrefs, Semrush, browser extensions or crawlers to find 404 and 410 URLs.
4. Sort dead pages by referring domains, topical fit and editorial quality.
5. Open the linking pages and read why they linked to the dead URL.
6. Build or update a replacement that matches the old link reason.
7. Find the right editor or site owner.
8. Send a short, specific email with the dead URL and your replacement.
9. Follow up once on strong prospects.
10. Record outcomes and cut weak prospect types.

The work is repetitive, but it should not be mindless. Every step helps avoid the same failure: pitching a page that is technically live but contextually useless.

Frequently asked questions

What is broken link building?

Broken link building is the process of finding dead links on other websites, creating or offering a relevant live replacement, and asking the site owner to update the link. It works best when the replacement clearly serves the same reader need as the old resource.

Does broken link building still work?

Yes, but it is not an easy-win tactic. It works when the dead page has relevant backlinks, your replacement is genuinely useful, and the site owner is still maintaining the page. Reply rates are usually low and variable, so prospect quality matters.

What are the benefits of broken link building?

The main benefits are contextual backlink opportunities, cleaner outreach angles, content ideas from dead resources, and useful prospect discovery. It can also help site owners improve pages by replacing dead citations with live resources.

What are some common causes of broken links?

Common causes include deleted pages, renamed URLs, site migrations, domain changes, removed downloads, formatting errors, expired domains and temporary server failures. The fix depends on whether the destination is gone, moved or only failing temporarily.

How do you find broken links for outreach?

Use backlink tools to find competitor pages that return 404 or 410 errors, then review the pages that still link to those URLs. You can also search for resource pages in your niche and check their outbound links with a browser extension or crawler.

What should a broken link outreach email include?

Include the page you found, the dead URL, your replacement URL and one short reason the replacement fits. Keep it helpful and low-pressure. Do not demand exact anchor text or imply the site owner must link to you.

Is Domain Authority the same as Google authority?

No. Domain Authority is Moz's third-party 1-100 predictive metric. It can help compare sites inside Moz's system, but Google does not use DA as a ranking score. Use it as a quick filter, then judge page relevance and quality manually.

Should you recreate the dead page exactly?

No. Use the dead page to understand the reader need, then create a better current resource. Copying the old page is risky and usually less useful than building a cleaner answer with current examples, clearer structure and verified facts.

Every fact and commercial claim in this guide was fact checked and verified on 16 July 2026.