can be used in a choice response to record any vary information which applies to the variant data (the entity body combined with some of the entity headers) contained in the response, rather than to the response as a whole.
Quick facts
Description
can be used in a choice response to record any vary information which applies to the variant data (the entity body combined with some of the entity headers) contained in the response, rather than to the response as a whole.
Syntax
Variant-Vary: <value>
Related status codes
Frequently asked questions
can be used in a choice response to record any vary information which applies to the variant data (the entity body combined with some of the entity headers) contained in the response, rather than to the response as a whole.
It is classified as a response header and can appear in requests or responses depending on context.
Sources & standards
Updated 2026-09-13
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