Generate an MD4 hash for any string input.
Generate an MD5 hash of 32 characters length for any string input.
Get approximate IP details.
Get & verify the meta tags of any website.
Get all possible details about an SSL certificate.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get all the HTTP headers that an URL returns for a typical GET request.
Take an IP and try to look for the domain/host associated with it.