The Content-Length entity header is indicating the size of the entity-body, in decimal number of octets, sent to the recipient.
| Header type | Entity header |
|---|---|
| Forbidden header name | yes |
Syntax
Content-Length: <length>
Directives
- <length>
- The length in decimal number of octets.
Specifications
| Specification | Title |
|---|---|
| RFC 7230, section 3.3.2: Content-Length | Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.