Lost Backlinks and Link Rot: Why Links Disappear and What to Do
Links are not permanent. Pages get deleted, blogs shut down, editors trim old articles, sites redesign and forget to redirect. Researchers have documented link rot across the web for years, and anyone who tracks a backlink profile sees it every month. Losing links is normal. The question is which losses deserve your time.
Common reasons backlinks disappear
The linking page was removed
The article was deleted, the site restructured, or the whole domain expired. You can't recover these unless the content returns.
The link was edited out
An editor updated the article and removed or replaced your link. Sometimes it's because your page changed or broke, sometimes it's routine cleanup, and sometimes a competitor offered a "better resource".
Your own page moved or broke
This is the one you control. If your URL changed without a 301 redirect, links to the old URL now land on a 404. The links still exist, but they point at nothing. Google has said 404s don't harm your site in themselves, but the link value pointing at that URL is wasted.
The link changed attribute
A site might switch all outbound links to nofollow or sponsored. The link still exists but passes less value.
Paid or temporary placements expired
Many paid links are rented, not owned. When the payment stops, so does the link. Some bulk link services use pages that are deleted or deindexed after a short time. This churn is one reason paid link campaigns can look volatile.
It was never really lost
Backlink tools drop links when they fail to recrawl a page, or when a page is temporarily down. Before you act, open the page and check whether the link is still there.
Which lost links are worth recovering
Not every lost link deserves an email. Prioritise:
- Links from relevant, real sites that sent traffic or were among your strongest links.
- Links pointing at URLs on your site that now 404 (fully within your control).
- Links removed during an update of an article that is still live and ranking.
Low-priority losses: links from scraper sites, expired spam directories, auto-generated pages and anything you'd be glad to be rid of anyway.
How to find lost backlinks
- Most backlink tools (Ahrefs, Semrush, Moz) have a "lost backlinks" or "lost referring domains" report with the date and reason the tool thinks the link went away.
- Check the "broken backlinks" or "best by links" report filtered to 404 pages on your own site. These are links pointing at your dead URLs.
- In Search Console, the Pages report (under indexing) shows URLs returning 404. Cross-check which of those have external links.
- Run your own outbound and internal links through the broken link checker to catch the internal side of the problem.
How to reclaim them
Fix your own 404s first
For every URL on your site that has backlinks and now returns a 404, set up a 301 redirect to the most relevant live page. Don't redirect everything to the homepage; Google can treat irrelevant redirects like soft 404s. If there's no relevant page, consider restoring the content.
Example: a Jaipur interior design studio moved from /portfolio/living-rooms to /projects/living-room-designs during a redesign. The old URL had links from two home decor blogs. A single 301 redirect recovers the value of both without contacting anyone.
Ask for removed links back, politely
If a link was edited out of a live article, a short, friendly email is reasonable. Mention the article, point out that the page they linked to is still available (or give the new URL), and offer something useful, like updated information. Don't demand. Many site owners won't reply, and that's fine.
Offer a replacement when your page changed
If you deleted the page they linked to, find the nearest equivalent on your site and suggest it. Better still, redirect the old URL so you don't need to ask at all.
Turn mentions into links
Sometimes a site mentions your brand without linking, especially after an update. That's a separate opportunity, covered in unlinked brand mentions.
How to reduce future losses
- Keep URLs stable. Think before changing URL structures, and always map old URLs to new ones with 301s during a redesign.
- Earn links to content you'll keep. Links to evergreen guides tend to last longer than links to time-limited promotions.
- Prefer links on established, maintained sites. A link on a well-run industry blog will likely outlive one on a site built last month to sell placements.
- Track your top links. Keep a short list of your 20 to 50 most valuable links and check them every quarter.
If you rely on bought placements, ask any vendor in advance what happens if links are removed, and check placements yourself over time rather than trusting a one-off report. Our guide on what's in a backlink report explains what to look for.
A place to start
Run a "broken backlinks" report in your backlink tool and list every 404 URL on your site that still has external links. Redirect each one to its closest live equivalent this week. It's the quickest link reclamation you'll ever do, and it needs no outreach. For background on how that value flows once it's restored, see link equity explained.