Hypertext Transfer Protocol (HTTP) Upgrade Token Registry

Last Updated
2018-09-20
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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]