Easily convert hours to seconds.
Easily convert hours to minutes.
Easily convert hours to days.
Easily convert hours to weeks.
Easily convert hours to months.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Take an IP and try to look for the domain/host associated with it.
Get all possible details about a domain name.
Get all possible details about an SSL certificate.
Make sure your passwords are good enough.
Extract email addresses from any kind of text content.