HTTP 303 See Other

What does HTTP 303 mean?

The client should fetch a different URL with GET. The textbook use is the Post/Redirect/Get pattern: after a form is submitted with POST, the server answers 303 pointing to a confirmation page, so refreshing the page does not resubmit the form.

3xx Redirection: The client must take another step — usually follow the URL in the Location header — to complete the request.

303 and SEO

Not used for moving pages; no SEO effect.

Example response

HTTP/1.1 303 See Other
Location: /orders/1001/confirmation

Related status codes

• 302 Found — The resource is temporarily at a different URL, given in the Location header.
• 307 Temporary Redirect — Temporary redirect that keeps the request method and body.
• 201 Created — The request succeeded and a new resource was created.

Check which status code a URL returns with the HTTP header checker, or trace a redirect chain with the redirect checker.