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 a domain name.
Ping a website, server or port..
Check if the URL is cached or not by Google.
Get all possible details about an SSL certificate.
Separate text back and forth by new lines, commas, dots...etc.
Reverse the words in a given sentence or paragraph with ease.
Extract email addresses from any kind of text content.