Broken link building is one of the few link acquisition tactics that still works in 2026, because it is built on a favour rather than a request. You find a dead outbound link on someone else’s page, you rebuild the content that used to live at that URL, and you offer it as a replacement. The site owner fixes a broken user experience, and you get a contextual backlink.
The problem is that most guides stop at the theory. This walkthrough goes further: real reply rates you should expect, the exact outreach structures that convert, and the pitches that get your email deleted in two seconds.
What is broken link building?
Broken link building is an SEO strategy where you identify links on external websites that point to pages returning a 404 or other error, then contact the site owner and suggest they replace the dead link with a link to a working, relevant page on your own site.
Three things have to be true for it to work:
- The link is genuinely broken (404, 410, DNS failure, or a redirect to an irrelevant page).
- The page hosting the link is still maintained by a human who cares.
- Your replacement covers the same topic and the same intent as the dead page, not just the same keyword.
Why it still works when most outreach fails
The web decays continuously. Companies shut down, blogs get migrated without redirects, free tools disappear, PDFs get pulled off university servers. Every one of those events creates dozens or hundreds of broken inbound links that nobody is actively monitoring.
Compared with guest posting or generic “I loved your article” emails, broken link building has three structural advantages:
- You deliver value before you ask. A broken link is a real problem on their page.
- Editors have a reason to edit. You are not asking them to add content, only to swap a URL.
- The anchor and the context already exist. The link sits inside relevant copy that was written by a human.
The honest numbers: what reply rates to expect
Most agencies quote conversion rates that are, politely, optimistic. Here is a realistic benchmark range based on cold campaigns sent to properly qualified prospects, with one or two follow ups.
| Campaign type | Open rate | Reply rate | Link placement rate |
|---|---|---|---|
| Generic blast, no personalisation | 30 to 45% | 1 to 3% | Under 1% |
| Broken link pitch, loosely relevant replacement | 40 to 55% | 5 to 9% | 1 to 3% |
| Broken link pitch on curated resource pages, exact topical match | 50 to 65% | 12 to 20% | 4 to 8% |
| Rebuilt page that mirrors the original dead asset (tool, study, template) | 55 to 70% | 18 to 28% | 8 to 15% |
Read that last column carefully. Even a very good campaign converts fewer than 1 prospect in 6. If you need 20 links, plan for roughly 250 to 400 qualified prospects, not 50. Volume of qualified targets is the real lever, not clever copywriting.
Step 1: Choose the right types of pages to target
Not every page is worth a pitch. Prioritise pages where outbound links are the point of the page:
- Resource and “useful links” pages on blogs, associations, universities and local government sites.
- Curated roundups such as “40 best tools for X” or “recommended reading”.
- Glossaries and reference hubs that cite external definitions and studies.
- Long-form guides that cite statistics, studies or original research.
- Course syllabi and reading lists (slow to update, high authority, often .edu).
Useful search operators to build the seed list:
"your topic" intitle:resources"your topic" inurl:links"your topic" "useful links" -site:yourdomain.com"your topic" "recommended tools" 2024..2026site:.edu "your topic" "resources"
The faster route: start from dead pages, not from live pages
Scanning random resource pages for broken links is slow. The efficient approach works in reverse:
- Find a URL in your niche that is dead but still has a lot of referring domains.
- Export every page linking to it.
- Rebuild that content.
- Pitch all of those linking pages at once.
One good dead asset can give you 80 to 300 prospects from a single research session. That is where the leverage sits. digitalsquad.com makes the same point with more data.
Step 2: Find the broken links
Methods and tools
| Tool | Best use | Cost |
|---|---|---|
| Ahrefs (Site Explorer, Best by links with 404 filter) | Finding dead competitor pages that still attract backlinks | Paid |
| Semrush (Backlink Analytics + Site Audit) | Auditing broken internal and outbound links at scale | Paid |
| Screaming Frog SEO Spider | Crawling a list of resource pages and exporting all 4xx outlinks | Free up to 500 URLs |
| Check My Links / LinkMiner browser extensions | Spot checking a single page in one click | Free |
| httpstatus.io | Bulk status code checks on exported URL lists | Free tier |
| Wayback Machine | Seeing exactly what the dead page contained | Free |
A repeatable workflow
- Build a list of 200 to 500 candidate resource pages using the operators above.
- Paste them into Screaming Frog in list mode, enable Crawl Outside of Start Folder and crawl all outlinks.
- Use Bulk Export > Response Codes > Client Error (4xx) Inlinks.
- You now have a spreadsheet with two critical columns: the page that contains the link (your prospect) and the dead URL (your opportunity).
- Deduplicate dead URLs and sort by how many prospects point to each one.
Pro tip: verify status codes twice, two or three days apart. Temporary 503 errors, rate limiting and bot blocking produce a surprising number of false positives, and nothing kills credibility faster than telling an editor a working link is broken.
Step 3: Qualify before you write anything
Deleting weak prospects is the highest-ROI task in the whole campaign. Remove a prospect if:
- The page has not been updated in 5 or more years and shows no sign of maintenance.
- There is no named contact, only a generic web form on a corporate domain.
- The page is a scraped directory, a spam blog or a link farm.
- The dead link points to a commercial competitor’s homepage, where a swap to you would be awkward.
- You cannot genuinely produce a comparable replacement.
Then check the dead URL in the Wayback Machine. Ask: what did the reader actually get at that URL? A checklist? A 2019 statistics roundup? A free calculator? Your replacement must deliver the same job, otherwise your reply rate collapses.
Step 4: Recreate the missing content (properly)
This is where most campaigns fail. People pitch a vaguely related blog post and wonder why nobody responds.
The replacement content rules
- Match the format. If the dead asset was a template, publish a template. If it was a data study, publish data.
- Match the depth. A 600-word post does not replace a 4,000-word reference guide.
- Update what was outdated. If the original cited 2019 figures, give 2026 figures. That is your strongest selling point.
- Do not copy. Use the archive as a brief, not as a source document. Republishing someone else’s work creates legal and quality problems.
- Keep it ungated and ad-light. Editors will not link to an email capture wall.
Use one clean destination URL
Give the replacement a short, readable, permanent URL and never change it. If you need to track the performance of a specific outreach batch, use tracked short links in your reporting rather than appending parameters to the link you ask people to publish. Editors notice UTM strings and often strip them, and parameterised URLs split your link equity across variants. Managing a clean, stable URL structure is exactly the kind of hygiene that makes the next campaign easier.
Step 5: Find the right contact
Aim for the person who can edit the page:
- Check the page byline and the author bio.
- Check the
/about,/teamand/contactpages. - Use LinkedIn for roles such as content manager, editor, webmaster or librarian (for .edu).
- Verify the address with an email verification tool to keep bounce rates under 3%.
If only a generic address exists, still send it, but expect roughly half the reply rate. Address the message to a role, not to “Dear Webmaster”.
Step 6: Outreach email structures that actually convert
Every high-performing broken link email follows the same five-part skeleton:
- Context line proving you read the page (one sentence, specific).
- The problem with the exact URL and the exact anchor text.
- The reason it is dead if you know it (the company closed, the site migrated).
- The offer, framed as optional.
- A low-friction close with a single, easy question.
Template 1: Resource page, single broken link
Subject: broken link on your [topic] resources page
Hi [First name],
I was working through your [page title] list this morning and the link under “[anchor text]” now returns a 404. Looks like [original site] took the page down when they rebranded last year.
I rebuilt that resource with current 2026 data here: [URL]. Same format, same scope, updated figures.
Totally your call whether it fits, but either way you may want to pull the dead link so readers stop hitting the error.
Want me to send the other two broken links I noticed on that page?
[Your name], [role] at [company]
That last line is the highest-converting sentence in the whole email. It turns a pitch into a conversation and often earns a reply even when the swap is declined.
Template 2: Multiple broken links (the audit angle)
Subject: 4 dead links on [page title]
Hi [First name],
Quick heads up, I ran your [page title] through a link checker and four of the outbound links are dead:
1. [anchor] → [URL] (404)
2. [anchor] → [URL] (domain expired)
3. [anchor] → [URL] (404)
4. [anchor] → [URL] (redirects to a parked page)I happen to have a current replacement for number 2: [URL]. For the other three I would suggest [alternative A] and [alternative B], neither of which are mine.
Hope that saves you some time.
[Your name]
Recommending links that are not yours raises trust dramatically and tends to double reply rates on institutional sites.
Template 3: The follow up (send once, 5 to 7 days later)
Hi [First name], bumping this once in case it got buried. The dead link is still live on [page URL] under “[anchor]”. Happy to send the replacement again or just leave it with you. Either is fine.
One follow up typically adds 30 to 40% more replies. A second adds a little. A third mostly generates spam complaints. Stop at two.
Timing and volume guidelines
| Variable | Recommendation |
|---|---|
| Send days | Tuesday to Thursday |
| Daily volume per mailbox | 30 to 50 maximum |
| Subject line length | 4 to 7 words, lowercase, no hype |
| Email length | 90 to 140 words |
| Follow ups | 1, maximum 2 |
| Links in the email | 2 maximum (the broken one and yours) |
What to avoid: pitches that get deleted
Bad example 1: the flattery opener
“Hi there! I just LOVED your amazing article, it was so insightful and well written…”
Editors receive this twenty times a week. It signals a template instantly. Replace it with a specific detail: the section heading, the number of items in the list, a point you disagreed with.
Bad example 2: the vague claim
“I noticed some broken links on your website.”
Which links? Which page? If the recipient has to do work to verify your claim, they will not. Always paste the exact URL, the exact anchor text and the status code.
Bad example 3: the irrelevant swap
A dead link to a free keyword density checker cannot be replaced by your “Ultimate Guide to Content Marketing”. Different format, different intent. This is the single biggest cause of silence.
Bad example 4: the entitled follow up
“Just following up again, I have not heard back. Did you get a chance to add my link?”
Nobody owes you a link. Frame follow ups around the broken link, not around your request.
Other things to avoid
- Offering payment in the first email (it changes the conversation and can create a paid link problem).
- Attaching files.
- Sending from a brand new domain with no warm up.
- Pitching the same site five times in one month with different dead links.
- Claiming a link is broken when it redirects correctly.
Step 7: Track the campaign properly
Record these fields in your outreach sheet so you can improve the next batch:
- Prospect URL, dead URL, anchor text
- Contact name and email, verification status
- Template version used
- Date sent, date of follow up
- Reply type: positive, negative, no response, bounce
- Link live date and whether it is dofollow
- Referring domain metrics for reporting
Re-check placed links after 60 and 180 days. A meaningful percentage of links get removed during redesigns, and a short, polite note usually gets them restored.
A realistic campaign plan
| Phase | Time | Output |
|---|---|---|
| Prospecting and crawling | Week 1 | 300 to 500 raw prospects |
| Qualification and contact finding | Week 2 | 200 to 300 verified targets |
| Content rebuild | Weeks 2 to 3 | 1 to 3 replacement assets |
| Outreach and follow up | Weeks 4 to 6 | 25 to 50 replies |
| Links live | Weeks 5 to 10 | 10 to 20 links |
Bonus: fix your own broken links first
Before chasing other people’s 404s, run a crawl of your own site. Every broken inbound link pointing at your domain is a link you already earned and are currently wasting. Export your 404 pages with backlinks, then 301 redirect them to the closest relevant live page. This is faster, free and often delivers more measurable gain than a full outreach campaign.
FAQ
What are broken links?
Broken links, also called dead links, are hyperlinks that point to a resource that no longer exists or cannot be reached. Clicking one usually returns a 404 Not Found error, though a broken link can also return a 410, a server error, a DNS failure or a redirect to a parked or irrelevant page. They happen when pages are deleted, URLs change without a redirect, domains expire or a site migrates.
How can I check for broken links in Semrush?
Run a Site Audit on your domain, then open the Issues tab and filter for “broken”. Semrush separates broken internal links, broken external (outbound) links and broken images, and shows the source page for each one. For broken links pointing at other domains, use Backlink Analytics, enter a competitor or a dead URL, and review the Indexed Pages and referring domains reports to find pages that still link to dead content.
How do I view broken links on any web page?
The quickest method is a browser extension such as Check My Links or LinkMiner, which highlights dead outbound links directly on the page in red. For bulk checking, crawl a list of URLs with Screaming Frog and export all 4xx response codes, or paste URLs into a bulk status checker like httpstatus.io. Google Search Console also reports 404s discovered on your own site.
What is the difference between link building and backlinks?
A backlink is the asset: a hyperlink from another website pointing to yours. Link building is the activity: the set of strategies you use to earn those backlinks, such as broken link building, digital PR, resource page outreach or original research. In short, backlinks are the result, link building is the process.
Is broken link building still effective in 2026?
Yes, but only when the replacement content is a genuine match for what was lost. Editors are more cautious than they were a few years ago and templated AI-written pitches have raised everyone’s spam filters. Expect a 4 to 8% placement rate on well-qualified resource page campaigns, and higher when you rebuild a specific dead asset that many sites still reference.
Is broken link building against Google’s guidelines?
No. You are suggesting a relevant replacement for content that no longer exists, and the publisher makes the editorial decision. It becomes problematic only if you pay for the placement, use automated mass spam, or push links that are irrelevant to the host page.
How many emails do I need to send to get one link?
As a planning figure, between 12 and 25 qualified, personalised emails per link. If your ratio is worse than 40 to 1, the problem is almost always prospect quality or replacement relevance, not your copy.
Should I use nofollow links from broken link building?
Accept them. Many high-authority publishers and institutions nofollow all outbound links by default, and those placements still deliver referral traffic, brand visibility and a more natural overall link profile.
Key takeaways
- Work backwards from dead pages with many backlinks instead of scanning random sites.
- Qualify hard: half of your prospect list is usually not worth an email.
- Rebuild the format, not just the topic.
- Lead with the problem, paste the exact URL and anchor, and make the offer optional.
- Send one follow up, never three.
- Budget for a 4 to 8% placement rate and scale your prospect list accordingly.
Done properly, broken link building is slow, unglamorous and one of the most durable ways to earn editorial links. Start with 50 prospects this week, measure your reply rate honestly, and refine from there.