Generate an MD4 hash for any string input.
Generate an MD5 hash of 32 characters length for any string input.
Get approximate IP details.
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 the HTTP headers that an URL returns for a typical GET request.
Ping a website, server or port..