200 OK
2xx Success
The request succeeded — the most common response of all.
| On the wire | HTTP/1.1 200 OK |
|---|---|
| Code | 200 |
| Is it an error | No — not an error |
| Category | 2xx Success |
The request went through.
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
QWhat does HTTP 200 OK mean?
The request succeeded — the most common response of all.
QWhat does 200 OK look like on the wire?
It travels as HTTP/1.1 200 OK
QIs 200 OK an error?
No — it is part of a normal exchange, not a failure.
QWhat group does 200 OK belong to?
The 2xx success group; the rest of that group is listed further down.