curl -I --http2

curl -I --http2 https://google.com
HTTP/2 301
location: https://www.google.com/
content-type: text/html; charset=UTF-8
date: Wed, 28 Sep 2022 18:47:13 GMT
expires: Wed, 28 Sep 2022 18:47:13 GMT
cache-control: private, max-age=2592000
server: gws
content-length: 220
x-xss-protection: 0
x-frame-options: SAMEORIGIN
set-cookie: CONSENT=PENDING+036; expires=Fri, 27-Sep-2024 18:47:13 GMT; path=/; 
domain=.google.com; Secure
p3p: CP="This is not a P3P policy! See g.co/p3phelp for more info."
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"

curl -I --http2 https://google.com
HTTP/2 301
location: https://www.google.com/
content-type: text/html; charset=UTF-8
date: Wed, 13 Oct 2021 10:31:33 GMT
expires: Wed, 13 Oct 2021 10:31:33 GMT
cache-control: private, max-age=2592000
server: gws
content-length: 220
x-xss-protection: 0
x-frame-options: SAMEORIGIN
set-cookie: CONSENT=PENDING+087; expires=Fri, 01-Jan-2038 00:00:00 GMT; path=/; domain=.google.com; Secure
p3p: CP="This is not a P3P policy! See g.co/p3phelp for more info."
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3- 
Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"

curl -I --http2  http://localhost
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Wed, 28 Sep 2022 18:48:45 GMT
Content-Type: text/html
Content-Length: 178
Connection: keep-alive
Location: https://localhost/

See also

• HTTP, HTTP client, HTTP/1.1, HTTP/2, HTTP/3, HTTPS, HSTS CSR, TLS, SSL, openSSL, WebSockets, WebRTC, ssl_certificate QUIC, HPKP, CT, List of HTTP status codes, URL redirection, Content-type:, Webhook, HTTP headers, --insecure, Axios HTTP client, HTTP cookies, HTTP ETag, Hypertext Transfer Protocol -- HTTP/1.1