topic Registered
Verified 2026-09-19 · registry updated
2025-10-02HTTP registry: exi
W3C Efficient XML Interchange
HTTP parameter values extend negotiation, framing, preferences, range handling, or other protocol components. exi is registered in HTTP Content Coding Registry. Defining reference: W3C Recommendation: Efficient XML Interchange (EXI) Format.
httpregistryhttp-parameterscontent-coding
Identifier (http)
exi
W3C Efficient XML Interchange
Interpret parameters only in the context that defines them; unknown parameters must not silently change security or framing behavior.
This registry value is currently marked active by IANA. Follow the defining specification before sending, accepting, or proxying it.
IANA registry: http-parameters/content-coding
Registry reference: W3C Recommendation: Efficient XML Interchange (EXI) Format
Sources