is advertising the availability of alternate services to HTTP/1.1 and HTTP/2.0 clients by adding an Alt-Svc header field to responses.
Quick facts
Description
is advertising the availability of alternate services to HTTP/1.1 and HTTP/2.0 clients by adding an Alt-Svc header field to responses.
Syntax
Alt-Svc: h3=":443"; ma=2592000
Related status codes
Frequently asked questions
is advertising the availability of alternate services to HTTP/1.1 and HTTP/2.0 clients by adding an Alt-Svc header field to responses.
It is classified as a response header and can appear in requests or responses depending on context.
Sources & standards
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