$ telnet x.y.z.w 80
Trying x.y.z.w...
telnet: Unable to connect to remote host: No route to host
But you can ssh to this host, right?
Well, that means the firewall blocks your request and sends the ICMP message "no route to host".
Switch to the legacy iptables using ``update-alternatives`` and check ``iptables -L -v -n`` again.
If no rule blocks this port, ask your hosting company.