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.
Check if the URL is cached or not by Google.
Get details of any file type, such as the mime type or last edit date.
Make sure your passwords are good enough.
Get the web-host of a given website.
Check if the URL is banned and marked as safe/unsafe by Google.
Parse details from user agent strings.