Generate an MD2 hash for any string input.
Generate an MD4 hash for any string input.
Get approximate IP details.
Get all possible details about a domain name.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Take an IP and try to look for the domain/host associated with it.
Ping a website, server or port..
Extract email addresses from any kind of text content.