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..
Make sure your passwords are good enough.
Easily generate your own custom signature and download it with ease.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Convert text to ascii and the other way for any string input.
Check if the URL is banned and marked as safe/unsafe by Google.