HTTP

HyperText Transfer Protocol

Links

HTTP/2

• Wikipedia 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

HTTP Status Codes

• List of HTTP status codes
• RFC 9110 HTTP Semantics

Most common HTTP status codes

301

Moved permanently, redirect

401

Unauthorized

403

Forbidden

404

Not found

500

Internal Server Error