The Accept-Ranges response HTTP header is a marker used by the server to advertise its support of partial request. The value of this field indicates the unit that can be used to define the range.

In presence of an Accept-Ranges header, the browser may try to resume an interrupted download, rather than to start it from the start again.

Header type Response header
Forbidden header name no


Accept-Ranges: bytes
Accept-Ranges: none


No range unit is supported, this makes the header equivalent of its own absence and is therefore rarely used

Ranges can be expressed in bytes.


Accept-Ranges: bytes


Specification Title
RFC 7233, section 2.3: Accept-Ranges Hypertext Transfer Protocol (HTTP/1.1): Range Requests

Browser compatibility

No compatibility data found. Please contribute data for "Accept-Ranges" to the MDN compatibility data repository.

See also

Document Tags and Contributors

 Contributors to this page: fscholz, teoli
 Last updated by: fscholz,