Generate an MD4 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.
Make sure your passwords are good enough.
Get all possible details about a domain name.
Get the gravatar.com globally recognized avatar for any email.