Hypertext Transfer Protocol (HTTP) Upgrade Token Registry

Registry included below

HTTP Upgrade Tokens

Registration Procedure(s)

First Come First Served

Reference

[RFC7230]

Note

Please see [RFC7230], Section 8.6.1 for details regarding token registrations.

Available Formats

CSV

Value	Description	Expected Version Tokens	Reference
HTTP	Hypertext Transfer Protocol	any DIGIT.DIGIT (e.g, "2.0")	[RFC7230, Section 2.6]
TLS	Transport Layer Security	ANY DIGIT.DIGIT (e.g.. "1.2")	[RFC2817]
WebSocket	The Web Socket Protocol		[RFC6455]
websocket	The Web Socket Protocol		[RFC6455][RFC8441]
h2c	Hypertext Transfer Protocol version 2 (HTTP/2)		[RFC7540, Section 3.2]