303 See Other
The response to the request can be found at another URL using a GET request.
What it means
HTTP 303 See Other directs the client to retrieve the result of a request from a different URL with a GET, regardless of the original method. It is the canonical way to redirect after a POST so a refresh does not resubmit the form.
When it happens
It happens in the Post/Redirect/Get pattern — after submitting a form, the server returns 303 to send the browser to a confirmation page via GET.
How to fix it
- Nothing to fix — 303 is the correct pattern for redirecting after a form submission.
- Ensure the target URL responds with 200 to a GET request.
SEO impact
Minimal. 303 is used for form flows and user actions rather than indexable content, so it rarely factors into rankings.
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Related codes
The resource has permanently moved to a new URL.
302 FoundThe resource is temporarily at a different URL.
304 Not ModifiedThe cached version of the resource is still valid, so no body is sent.
305 Use ProxyA deprecated code telling the client it must reach the resource through a specified proxy.
306 Switch ProxyA reserved, unused status code that no longer carries any meaning.
307 Temporary RedirectA temporary redirect that preserves the original request method.
Related guides
A plain-English primer on HTTP status codes for SEOs: what the 2xx, 3xx, 4xx, and 5xx families mean, which ones affect rankings, and the codes worth knowing.
How to find and fix broken linksA practical walkthrough for finding broken links on your site, working out why each one breaks, and fixing them so visitors and crawlers stop hitting dead ends.