Easily convert years to seconds.
Easily convert years to hours.
Easily convert years to days.
Easily convert years to weeks.
Easily convert years to months.
Take an IP and try to look for the domain/host associated with it.
Get & verify the meta tags of any website.
Get all the HTTP headers that an URL returns for a typical GET request.
Separate text back and forth by new lines, commas, dots...etc.
Get approximate IP details.
Convert a particular date to the unix timestamp format.