Broken Link Building: How to Get Links by Fixing Others
Broken link building is one of the most reliable white-hat link acquisition tactics available to SEOs. The premise is simple: find links on other websites that point to dead pages, create or repurpose content that genuinely replaces what broke, then reach out to the site owner with a helpful heads-up and a ready-made replacement. Everyone wins — the webmaster fixes a dead link, their visitors stop hitting 404 errors, and you earn a high-quality backlink.
What Is Broken Link Building?
Broken link building is a link acquisition strategy where you identify hyperlinks on third-party websites that point to pages that no longer exist — typically resulting in a 404 error — and then contact the site owner to suggest your content as a replacement. Unlike aggressive outreach tactics that ask someone to link to you out of nowhere, broken link building frames the interaction as a genuine favour: you are alerting the webmaster to a problem on their site that they almost certainly did not know about.
The tactic was popularised in the early 2010s and remains effective because dead links accumulate naturally over time. Domains expire, pages get restructured without proper redirects, and content gets deleted. Resource pages and link roundups are particularly prone to link rot because they aggregate dozens or hundreds of external URLs that the site owner cannot realistically monitor. This creates a constant, replenishable supply of opportunities for patient link builders.
What makes broken link building genuinely white-hat is that it creates real value beyond the link itself. Webmasters get a better, more reliable page for their visitors. Readers avoid dead ends. And your content — if it truly replaces what was lost — earns its place in the ecosystem. Google has never penalised broken link building when done honestly, because it aligns with the goal of making the web more useful.
Why It Works
The psychology behind broken link building is what separates it from cold pitches. When you email a webmaster to say "I noticed your page links to a resource that no longer exists — here is something that covers the same topic," you are not asking for a favour; you are doing one. That framing dramatically lowers the emotional barrier to saying yes. Most site owners genuinely want their external links to work because broken links reflect badly on their site's credibility and user experience.
From an SEO standpoint, the links you acquire through this method tend to be contextually relevant and editorially placed — exactly the kind of backlinks that carry genuine ranking power. Because you are targeting pages that already link out to resources in your niche, the surrounding content is topically aligned with what you are building links to. This relevance signal amplifies the value of each placement far beyond what a generic directory listing or paid placement could provide.
Broken link building also tends to work particularly well on pages with high authority. Resource pages on established educational institutions, government sites, and industry associations often go years without a thorough link audit. Finding broken links on a DR 80 university page and securing a replacement is a legitimately difficult feat through any other means — but it becomes surprisingly accessible through a well-executed broken link campaign.
Finding Broken Links on Target Sites
The most efficient tool for finding broken outbound links on specific pages is Ahrefs' Broken Links report, available inside the Site Explorer. Enter a competitor domain or a resource-heavy website in your niche, navigate to the "Broken Links" section under "Outgoing Links," and you will see every external link that resolves to a non-200 status code. Filter by DR of the linking domain if you want to prioritise high-authority sites, and sort by the number of referring domains pointing to the broken destination to find the highest-value replacement opportunities.
For a free, page-level alternative, the Check My Links browser extension (available for Chrome) is indispensable. Install it, navigate to any resource page in your niche, and click the extension — it will crawl every hyperlink on the page in real time and highlight broken ones in red. This is ideal for manual prospecting when you are exploring a curated list of resource pages. It does not scale as well as Ahrefs for bulk work, but it requires no subscription and works immediately.
Screaming Frog SEO Spider is the best tool if you want to crawl an entire domain's outbound links for broken destinations. Set it to crawl a target domain in "List" mode or standard crawl mode, enable the "Check External Links" option under Configuration, and let it run. Once complete, export the external links tab, filter by 404 status, and you have a complete map of every broken outbound link on that site. This is particularly powerful for large resource sites with hundreds of linking pages.
Finding Resource Pages with Dead Links
Resource pages are the richest hunting ground for broken link building because they exist specifically to aggregate external links. To find them at scale, use Google search operators. Queries like intitle:"resources" "[your topic]" or "useful links" "[your topic]" site:.edu surface pages that were built specifically to point visitors toward useful external content. These pages are goldmines because they link out frequently and their owners are predisposed to linking — that is the page's purpose.
Another effective approach is to look for archived versions of dead pages that used to receive many links. Using Ahrefs' Content Explorer or Site Explorer, find URLs that have a significant number of referring domains but now return a 404. Pull up the Wayback Machine to see what that page used to contain, then search for any resource pages that still link to it. Those linking pages now have a broken link pointing to a dead destination — and you know exactly what the original content covered, giving you a blueprint for your replacement.
You can also reverse-engineer competitor broken link opportunities. Enter a competitor's domain into Ahrefs and check their "Best by Links" report filtered to 404 pages. These are URLs on your competitor's site that once attracted many backlinks but now deliver a dead page. Every site that still links to those dead competitor pages is a broken link building prospect — they want to link to this type of content, they just need a working destination.
Evaluating the Opportunity
Not every broken link is worth pursuing. Before investing time in content creation and outreach, evaluate each opportunity across four dimensions: domain authority, organic traffic, topical relevance, and the number of broken links on the page. A page with a Domain Rating of 70 and 5,000 monthly organic visitors is far more valuable than a DR 20 page with no traffic — even if both are willing to swap in your link.
Relevance is non-negotiable. A backlink from a high-DR site in a completely different niche provides minimal SEO value and can look spammy to sophisticated link evaluators. Prioritise opportunities where the linking page is topically adjacent to your content — if you are building links to an article about XML sitemaps, you want links from pages about technical SEO, web crawling, or website management, not from a cooking blog with a broken link in an unrelated sidebar widget.
Also consider the number of broken links on the target page. A resource page with 20 broken links signals heavy link rot and a webmaster who has not maintained the page in years. This can be good — they clearly need help — but it can also mean the contact information is outdated or the site is effectively abandoned. A single broken link on an otherwise well-maintained page often signals a higher-quality, more active webmaster who is more likely to respond to your outreach.
Creating or Repurposing Replacement Content
The most common mistake in broken link building is sending outreach before you have a credible replacement ready. If a webmaster clicks your suggested URL and finds a thin page, a homepage, or content that only vaguely matches what they were linking to, they will not make the swap — and rightly so. Your replacement content must genuinely serve the same purpose as the dead page, and ideally it should do so better than the original.
Start by using the Wayback Machine to recover what the dead page contained. Look at cached versions, screenshots, and any links to it from other sources to understand the original content's scope and depth. Then create a version that covers the same topic with current information, updated examples, and better formatting. You are not plagiarising the original — you are fulfilling the intent of the dead page with fresh, maintained content.
If you already have existing content that fits the broken link's context, repurposing is often better than creating from scratch. Audit your existing library before launching a broken link campaign and map each piece of content to the type of resources it could replace. Sometimes a minor update — adding a new section, refreshing statistics, improving the introduction — is enough to make an existing article the obvious best replacement for a dead page in your niche.
Writing the Outreach Email
The outreach email is where most broken link campaigns succeed or fail. The subject line should be specific and helpful without being clickbait. Something like "Broken link on your [Topic] resources page" or "Quick heads-up: dead link on [Page Name]" tells the recipient exactly what the email is about and why opening it benefits them. Avoid vague subject lines like "Collaboration opportunity" or "I found something interesting" — these read as generic cold outreach and get ignored.
Keep the body of the email short. Identify yourself briefly, state exactly which link is broken (include the anchor text and the dead URL so there is no ambiguity), and offer your replacement with a single sentence explaining why it covers the same ground. The entire email should be readable in 30 seconds. Do not pad it with compliments about their site, a long explanation of your credentials, or multiple replacement options — each addition creates friction and reduces response rates.
Personalisation matters more than length. Mentioning the specific page, the specific broken anchor text, and (if you have read the page) a brief observation about the resource section shows that you did real work before reaching out. Generic broken link emails that say "I found a broken link on your site — here is my URL" perform significantly worse than emails that demonstrate you actually reviewed the page and understand what it is trying to accomplish for its readers.
Following Up Without Being Annoying
A single follow-up email is appropriate and often necessary — many webmasters intend to act on your initial email but forget about it amid their regular workload. Send your follow-up five to seven days after your first message if you have heard nothing. Keep it even shorter than the original: a two-sentence reminder that references your previous email and restates the broken link and your replacement URL. Do not send a copy of the original email verbatim — that reads as automated and impersonal.
After one follow-up with no reply, move on. Sending a third or fourth email to the same contact damages your sender reputation, risks being marked as spam, and creates goodwill problems within niche communities where site owners talk to each other. The broken link building model works by volume — if a prospect does not respond after two touches, the time you spend on a third message is better invested in finding the next ten opportunities.
Timing your follow-up also matters. If your initial email went out on a Friday afternoon, many recipients will have missed it in their end-of-week email clearing. A Monday or Tuesday morning follow-up — when inboxes are being actively processed — tends to perform better than following up on the same day of the week as your original send. Small optimisations like these compound into meaningfully higher response rates across a large campaign.
Scaling Broken Link Building
Once you have validated the tactic with a small manual campaign, scaling requires systematising every step. Build a prospect spreadsheet that tracks: the target domain, the specific page URL, the broken anchor text, the dead destination URL, the contact email, the date of initial outreach, the date of follow-up, and the outcome. This structure lets you run campaigns across dozens of domains simultaneously without losing track of where each prospect stands in the sequence.
Virtual assistants can significantly accelerate the prospecting and email-finding stages. A trained VA can run Check My Links across a list of resource pages, log broken links in your tracking spreadsheet, and find contact information using tools like Hunter.io or Snov.io — all without needing deep SEO knowledge. Reserve your own time for the higher-judgment tasks: evaluating opportunity quality, writing or overseeing the replacement content, and reviewing outreach email templates for quality control.
Outreach tools like Pitchbox, Mailshake, or even a well-configured Gmail sequence can automate the sending and follow-up steps while maintaining personalisation tokens that insert the specific broken link details for each prospect. Be cautious with full automation — broken link outreach that feels robotic has much lower reply rates. The goal is to use automation for scheduling and tracking while keeping the emails themselves personalised and human.
Measuring Results and Success Rates
Industry benchmarks for broken link building campaigns typically show email response rates of 5–10% and actual link placement rates of 2–5% of total outreach volume. These numbers vary based on niche, content quality, email personalisation, and the authority of the domains you are targeting. High-authority sites tend to have lower response rates simply because their inboxes are busier and their editors are more selective — but the SEO value per placement is proportionally higher.
Track your campaign metrics weekly during active outreach: emails sent, replies received, links placed, and the average DR of secured placements. Divide links placed by emails sent to get your conversion rate, then calculate your cost-per-link in time and money. Compare this against other link acquisition channels you are running to understand where broken link building sits in your overall strategy's efficiency profile. For most SEOs, it outperforms guest posting on a cost-per-high-quality-link basis.
Beyond the link metrics, monitor the ranking and traffic impact of pages that receive new broken link placements. Use Google Search Console to track position changes for the target URLs over the 60–90 days following a link placement. Attribution is imperfect because many factors affect rankings simultaneously, but aggregating data across multiple placements will show you whether the campaign is moving the needle on keywords that matter to your business. That outcome — not the link count itself — is the ultimate measure of success.