Easily convert weeks to seconds.
Easily convert weeks to minutes.
Easily convert weeks to hours.
Easily convert weeks to days.
Easily convert weeks to months.
Get the gravatar.com globally recognized avatar for any email.
Make sure your passwords are good enough.
Get & verify the meta tags of any website.
Get details of any file type, such as the mime type or last edit date.
Take an IP and try to look for the domain/host associated with it.
Get the web-host of a given website.