By default is used to determine, what a domain a IP address resolve to.

Information about the domain

host hsploit.com

To get the name servers only.

host -t ns hsploit.com

To the mail servers only

host -t mx hsploit.com

To get

host -t a hsploit.com

Reverse DNS

host 104.18.43.9

Zone Transfer

We can utilize the information obtained in the above steps.