Convert text to hexadecimal and the other way for any string input.
Convert text to ascii and the other way for any string input.
Convert text to decimal and the other way for any string input.
Take an IP and try to look for the domain/host associated with it.
Make sure your passwords are good enough.
Generate passwords with custom length and custom settings.
Ping a website, server or port.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get all possible details about an SSL certificate.