Informally, its meaning is: if the representation is unchanged, send me the part(s) that I am requesting in Range; otherwise, send me the entire representation.
Quick facts
Description
Informally, its meaning is: if the representation is unchanged, send me the part(s) that I am requesting in Range; otherwise, send me the entire representation.
Syntax
If-Range: "33a64df5"
Related status codes
Frequently asked questions
Informally, its meaning is: if the representation is unchanged, send me the part(s) that I am requesting in Range; otherwise, send me the entire representation.
It is classified as a request header and can appear in requests or responses depending on context.
Sources & standards
Updated 2026-09-13
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