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..
Get all possible details about a domain name.
Validate JSON content and make it looks good.
Convert text to binary and the other way for any string input.
Get all the HTTP headers that an URL returns for a typical GET request.