Автор обосрался
~$ curl -vvvI https://dtf.ru/
* Trying 104.21.3.131:443...
* Connected to dtf.ru (104.21.3.131) port 443 (#0)
* ALPN: offers h2,http/1.1
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* CAfile: /etc/ssl/certs/ca-certificates.crt
* CApath: /etc/ssl/certs
* TLSv1.3 (IN), TLS handshake, Server hello (2):
...