I try to connect to link using Telnet,
telnet https://es.stackoverflow.com/ 443
I get an answer
telnet: could not resolve https://es.stackoverflow.com/443: Name or service not known
If I try this way
telnet es.stackoverflow.com 443
I can connect but when trying to build the request, the server closes the connection before
Trying 151.101.1.69...
Connected to es.stackoverflow.com.
Escape character is '^]'.
GET / HTTP/1.1
Connection closed by foreign host.