| Status code | 303 |
|---|---|
| Status text | See Other |
| Category | 3xx Redirection |
| Response has body | Usually |
| Specification | RFC 9110 |
What does 303 See Other mean?
The response to the request can be found at another URL, and should be retrieved with GET. It belongs to the 3xx Redirection class, which means further action is needed to complete the request, usually following a different URL.
When do APIs return 303?
The Post/Redirect/Get pattern — after a POST succeeds, the server redirects to a GET so a browser refresh does not resubmit the form.
How to fix a 303 See Other
Not an error. Unlike 307, a 303 deliberately changes the method to GET, which is the entire point of the pattern. Follow the Location header with a GET.
Reproduce a 303 response
The fastest way to understand a status code is to trigger one and read the full response. Open the
API tester and send a request to https://httpbin.org/status/303 — you will
see the 303 status along with every response header the server sent. Comparing those headers against
a working request is often what reveals the cause.
When you are debugging a real endpoint, check the response headers as carefully as the body, and confirm you are using the right HTTP method for the operation.
Related 3xx status codes
301 Moved Permanently
The resource has permanently moved to the URL in the Location header.
302 Found
The resource is temporarily at a different URL, but future requests should still use the original.
304 Not Modified
The cached copy the client already has is still valid, so no body is sent.
307 Temporary Redirect
Like 302, but the HTTP method and body must be preserved when following the redirect.
308 Permanent Redirect
Like 301, but the method and body must be preserved.