Take an IP and try to look for the domain/host associated with it.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get all possible details about an SSL certificate.
Get all possible details about a domain name.
Ping a website, server or port..
Easily convert bytes (B) to yottabytes (YB).
Check if the URL is cached or not by Google.
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.
Easily convert bytes (B) to terabytes (TB).
Convert kilometers per hour (kph) to miles per hour (mph) with ease.