Generate an MD4 hash for any string input.
Generate an MD5 hash of 32 characters length for any string input.
Extract email addresses from any kind of text content.
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.
Get approximate IP details.
Get & verify the meta tags of any website.
Make sure your passwords are good enough.