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 approximate IP details.
Get all possible details about an SSL certificate.
Ping a website, server or port..
Convert text to binary and the other way for any string input.
Easily convert years to days.
Convert text to ascii and the other way for any string input.
Easily convert ICO image files to GIF.