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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


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


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


Content-Range: bytes 200-1000/67589 


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Content-RangeChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes


Full support  
Full support

See also