Lost links are backlinks that a tool previously recorded and can no longer find. A link can disappear because the other site edited or deleted the page, added nofollow, changed its domain, or because your own page now returns an error. Some losses are normal churn. Others, especially those caused by your own site, are easy value to recover.
Why links get lost
Backlink tools usually record a reason or let you infer one. Grouping lost links by reason tells you which ones are worth chasing.
- Linking page deleted, or the whole site went offline
- Link removed or rewritten during an edit
- Link changed to nofollow, sponsored or ugc
- Your target page now returns a 404 or a redirect chain
- Temporary crawl errors that make the tool think the link is gone
Which ones to act on
Losses caused by your site are the priority. If a link still exists but points to a page you deleted or moved without a redirect, a 301 to the closest relevant page restores the path. Losses on the other site are worth a polite note only when the link was valuable and the change looks accidental, such as a link broken during a redesign.
Do not chase every loss. Pages naturally get pruned, and asking an editor to restore a link they removed on purpose rarely helps.
Monitoring
Set alerts for lost referring domains in your backlink tool, and review high-value losses monthly. Pair this with a crawl of your own site for 404 pages that have inbound links.
Example
A redesign on a partner site
An illustrative billing platform, Coinwarden, notices that a payment processor's partner directory no longer links to it. The directory was redesigned and the listing lost its link by accident. A short email to the partner team restores it within a week.
Common mistakes
Panicking over tool fluctuations
Tools sometimes report links as lost when a page simply failed to load during the crawl. Check before reaching out.
Questions
Losing links removes whatever value they passed, so losses of important links can matter. Losing junk links usually makes no difference.
