3xx Redirection
303 See Other
Fetch the result from another URL using GET.
The standard response after a form POST (the Post/Redirect/Get pattern), so refreshing the page doesn’t resubmit the form.
Notes
- After handling a POST, redirect with 303 to the result page.
Example response
HTTP/1.1 303 See Other
Location: /orders/1001
Date: Thu, 22 Oct 2026 08:00:00 GMT Check a URL’s status with curl -I https://example.com, which prints the status line and headers.