303 See Other
3xx Redirection
Fetch the result from another URL with GET — the usual answer after a form submission.
| On the wire | HTTP/1.1 303 See Other |
|---|---|
| Code | 303 |
| Is it an error | No — not an error |
| Category | 3xx Redirection |
Go somewhere else — the distinction is permanent versus temporary.
How to read this
- The first digit of a status code carries the meaning: 4 means the request, 5 means the server.
- 404 means "not there"; 403 means "there, but not for you". Swapping them makes debugging slower.
- Header names are case-insensitive — Content-Type and content-type are the same header.
- Caching and CORS problems usually come down to one header line, visible in the browser’s network tab.
Frequently asked questions
Q. What does HTTP 303 See Other mean?
Fetch the result from another URL with GET — the usual answer after a form submission.
Q. What does 303 See Other look like on the wire?
It travels as HTTP/1.1 303 See Other
Q. Is 303 See Other an error?
No — it is part of a normal exchange, not a failure.
Q. What group does 303 See Other belong to?
The 3xx redirection group; the rest of that group is listed further down.