Headers of http://www.checkheaders.com/

HTTP/1.1 200 OK
Date
Fri, 10 Jun 2022 11:48:19 GMT
Server
Apache
Upgrade
h2
Connection
Upgrade, close
Cache-Control
max-age=600
Expires
Fri, 10 Jun 2022 11:58:19 GMT
Vary
Accept-Encoding,User-Agent
Content-Length
5070
Content-Type
text/html; charset=UTF-8