What it means
The server detected an infinite loop while processing a request with Depth: infinity (WebDAV). Some hosts also use it for resource limits.
Common causes
- WebDAV bindings forming a cycle
- Shared hosting (cPanel/CloudLinux) entry process limit reached
How to fix it
As a client or visitor
For WebDAV, request with a finite depth. On a website, try again later.
As the site or API owner
On shared hosting, a 508 often means resource limits were hit; optimise or upgrade the plan.
Example response
HTTP/1.1
HTTP/1.1 508 Loop Detected
Date: Tue, 07 Oct 2025 09:30:00 GMT
Server: nginx
Content-Length: 0Specification
FAQ
› Why does my shared hosting site show 508?
CloudLinux limits such as entry processes were exceeded; caching or a bigger plan helps.
› Is 508 standard?
Yes, in RFC 5842 for WebDAV loops.