HTTP
From DWIKI
HyperText Transfer Protocol
Links
HTTP/2
Curl check for http/2
curl -s -o /tmp/foo https://example.com -w '%{http_version}\n'
HOWTO
HTTP telnet session
GET / HTTP/1.0 Host: www.example.com
HyperText Transfer Protocol
curl -s -o /tmp/foo https://example.com -w '%{http_version}\n'
GET / HTTP/1.0 Host: www.example.com