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.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Done
Get approximate IP details.
Check if the URL is cached or not by Google.
Make sure your passwords are good enough.