DNS#
Check DNS A record#
dig +short domain.com A
Check DNS with dig#
dig domain.com
Check DNS with nslookup#
nslookup domain.com
Check DNS with host#
host domain.com
Check reverse DNS#
dig -x 185.216.75.81
Check DNS records#
dig domain.com ANY
Check MX records#
dig domain.com MX
Check TXT records#
dig domain.com TXT
Check CNAME records#
dig domain.com CNAME
Test DNS resolution#
ping -c 2 domain.com