416 Range Not Satisfiable
4xx Client error
The requested byte range lies outside the file.
| On the wire | HTTP/1.1 416 Range Not Satisfiable |
|---|---|
| Code | 416 |
| Is it an error | Yes — this is an error |
| Category | 4xx Client error |
The problem is on the request side; sending the same thing again will fail again.
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 416 Range Not Satisfiable mean?
The requested byte range lies outside the file.
Q. What does 416 Range Not Satisfiable look like on the wire?
It travels as HTTP/1.1 416 Range Not Satisfiable
Q. Is 416 Range Not Satisfiable an error?
Yes. A code starting with 4 blames the request; one starting with 5 blames the server.
Q. What group does 416 Range Not Satisfiable belong to?
The 4xx client error group; the rest of that group is listed further down.