Content-Range

The Content-Range response HTTP header indicates where in a full body message a partial message belongs.

Header type Response header
Forbidden header name no
CORS-safelisted response-header no

Syntax

Content-Range: <unit> <range-start>-<range-end>/<size>
Content-Range: <unit> <range-start>-<range-end>/*
Content-Range: <unit> */<size>

Directives

<unit>
The unit in which ranges are specified. This is usually bytes.
<range-start>
An integer in the given unit indicating the beginning of the request range.
<range-end>
An integer in the given unit indicating the end of the requested range.
<size>
The total size of the document (or '*' if unknown).

Examples

Content-Range: bytes 200-1000/67589

Specifications

Specification Title
RFC 7233, section 4.2: Content-Range Hypertext Transfer Protocol (HTTP/1.1): Range Requests

Browser compatibility

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See also