Generate an MD2 hash for any string input.
Generate an MD5 hash of 32 characters length for any string input.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Ping a website, server or port..
Get approximate IP details.
Get all possible details about a domain name.
Take an IP and try to look for the domain/host associated with it.
Check if the URL is cached or not by Google.