Decode URL input to back to a normal string.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Make sure your passwords are good enough.
Get approximate IP details.
Convert kilometers per hour (kph) to miles per hour (mph) with ease.
Get all possible details about an SSL certificate.
Take an IP and try to look for the domain/host associated with it.