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.
Get the gravatar.com globally recognized avatar for any email.
Ping a website, server or port..
Get all possible details about a domain name.
Make sure your passwords are good enough.
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.