Easily convert minutes to seconds.
Easily convert minutes to hours.
Easily convert minutes to days.
Easily convert minutes to weeks.
Easily convert minutes to months.
Get the gravatar.com globally recognized avatar for any email.
Check if the URL is cached or not by Google.
Take an IP and try to look for the domain/host associated with it.
Get all possible details about an SSL certificate.
Get & verify the meta tags of any website.
Make sure your passwords are good enough.