Checking your domain name Failed

Checking your domain name . . .
WARNING: Port 443 of computer does not appear to be accessible using hostname: test.test.com.
WARNING: Connection to http://test.test.com (port 80) also fails.

the dns is set to the servers ip.

I have tried multiple different domains have been stuck on this for 3 days now.

firewall is completely off. i have read all the other post with no solution…