Easily convert weeks to seconds.
Easily convert weeks to minutes.
Easily convert weeks to days.
Easily convert weeks to months.
Easily convert weeks to years.
Take an IP and try to look for the domain/host associated with it.
Get approximate IP details.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Make sure your passwords are good enough.
Get the gravatar.com globally recognized avatar for any email.
Get all possible details about a domain name.