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.
Separate text back and forth by new lines, commas, dots...etc.
Easily convert IDN to Punnycode and back.
Get the size of a text in Bytes (B), Kilobytes (KB) or Megabytes (MB).