URL could not be fetched
What it means
The request never completed: DNS did not resolve, the connection was refused or reset, TLS failed, or the server did not answer in time. A crawler that cannot reach a page cannot index it.
How to fix it
Look at the error type on each row. DNS failures mean a hostname that no longer exists, usually an old subdomain still linked somewhere. Connection failures point at a firewall, a rate limiter reacting to the crawl, or a service that is down. Timeouts mean the page is too slow to render; raise the timeout to confirm, then fix the page. TLS errors mean an expired, mismatched or incomplete certificate chain.
Finding it in CrawlStat
After a crawl, open Issues and pick URL could not be fetched. Click Show all in Pages to filter the Pages table to the affected pages, or Export affected to hand the list to whoever owns the fix. Audit ID: fetch_failed.