226 IM Used
2xx Success
Only the differences from the requested resource were sent.
| On the wire | HTTP/1.1 226 IM Used |
|---|---|
| Code | 226 |
| 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 226 IM Used mean?
Only the differences from the requested resource were sent.
QWhat does 226 IM Used look like on the wire?
It travels as HTTP/1.1 226 IM Used
QIs 226 IM Used an error?
No — it is part of a normal exchange, not a failure.
QWhat group does 226 IM Used belong to?
The 2xx success group; the rest of that group is listed further down.