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