$ php wtfdns.php google.com

   WTF DNS?

 CLOUDFLARE
   cloudflare1    142.251.32.46
   cloudflare2    142.250.189.174
 OPENDNS
   opendns1    142.250.217.78
   opendns2    142.250.217.78
 GOOGLE
   google1    172.217.14.206
   google2    142.251.211.238
 CYBERGHOST
   cyberghost1    142.250.31.101 142.250.31.138 142.250.31.100 142.250.31.102 142.250.31.139 142.250.31.113
   cyberghost2    142.250.180.174
 IBM QUAD 9
   IBM Quad 9    172.253.117.100 172.253.117.102 172.253.117.113 172.253.117.138 172.253.117.101 172.253.117.139
   IBM Quad 9 #2    74.125.195.101 74.125.195.100 74.125.195.138 74.125.195.113 74.125.195.139 74.125.195.102
 TECH COMPANIES
   VeriSign    142.250.217.78
   Norton    172.217.14.238
   FreeDNS   ERROR
 REGIONS
   Seattle    142.251.32.238
   Dallas    142.251.32.238
   Washington DC    142.250.65.238
   Quebec    172.217.13.174