Check if the URL is cached or not by Google.
Check for 301 & 302 redirects of a specific URL. It will check for up to 10 redirects.
Get all the HTTP headers that an URL returns for a typical GET request.
Get details of any file type, such as the mime type or last edit date.
Make sure your passwords are good enough.
Easily convert bytes (B) to yottabytes (YB).