Resources > HTTP request headers > If-None-Match

HTTP request headers

A request headers is an HTTP header that the client sends to the server.

HTTP request headers list | HTTP Header Viewer



logo If-None-Match

ID: 34
TypeStandard
SubypeHTTP
Related headersAccept, Accept-Encoding, Accept-Charset, Accept-Language, Authorization, Connection, Content-Length, Content-Type, Cookie, Dnt, Expect, From, Host, If-Modified-Since, Prefer, Range, Referer, User-Agent, X-Auth-Token, X-Request-Id
Last seen2021-04-20 08:50:07
NoteAllows a 304 Not Modified to be returned if content is unchanged
Syntax
If-None-Match: "<etag_value>"

Example header value:
MaHFbWD

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