Take an IP and try to look for the domain/host associated with it.
Get approximate IP details.
Get all possible details about an SSL certificate.
Get all possible details about a domain name.
Ping a website, server or port..
Generate whatsapp message links with ease.
Generate a paypal payment link with ease.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Order text lines in alphabetical order (A-Z or Z-A) with ease.