Easily convert days to seconds.
Easily convert days to hours.
Easily convert days to weeks.
Easily convert days to months.
Easily convert days to years.
Extract email addresses from any kind of text content.
Get approximate IP details.
Take an IP and try to look for the domain/host associated with it.
Make sure your passwords are good enough.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Count the amount of characters and words of a given text.