google dig - SERP Analysis

https://toolbox.googleapps.com/apps/dig/

https://digwebinterface.com/

https://cloud.google.com/find-a-partner/partner/dig-security

https://www.youtube.com/watch%3Fv%3DVWxnK756ntw

https://stackoverflow.com/questions/59794456/understanding-dig-google-com-command

https://toolbox.googleapps.com/apps/main/

https://www.azion.com/en/documentation/products/guides/run-the-dig-command/

https://developers.google.com/speed/public-dns