##  Syntax

http

    
    
    Accept-Ranges: <range-unit>
    Accept-Ranges: none
    

##  Directives

` <range-unit> `

    

Defines the range unit that the server supports. Though ` bytes ` is the only
range unit formally defined by [ RFC 7233
](https://datatracker.ietf.org/doc/html/rfc7233) , additional range units may
be registered in the [ HTTP Range Unit Registry
](https://www.iana.org/assignments/http-parameters/http-
parameters.xhtml#range-units) .

` none `

    

Indicates that no range unit is supported. This makes the header equivalent of
its own absence and is therefore, rarely used. Although in some browsers, like
IE9, this setting is used to disable or remove the pause buttons in the
download manager.

##  Examples

http

    
    
    Accept-Ranges: bytes
    

##  Specifications

Specification  
---  
[ HTTP Semantics  
#  field.accept-ranges  ](https://www.rfc-editor.org/rfc/rfc9110#field.accept-
ranges)  
  
##  Browser compatibility

BCD tables only load in the browser  with JavaScript enabled. Enable
JavaScript to view data.

##  See also

  * [ ` If-Range ` ](/en-US/docs/Web/HTTP/Headers/If-Range)
  * [ ` Range ` ](/en-US/docs/Web/HTTP/Headers/Range)
  * [ IANA HTTP Range Unit Registry ](https://www.iana.org/assignments/http-parameters/http-parameters.xhtml#range-units)

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