Whois Lookup

Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.

Get approximate IP details.

Ping a website, server or port.

Take an IP and try to look for the domain/host associated with it.

Get all possible details about an SSL certificate.

Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.

Get all the HTTP headers that an URL returns for a typical GET request.

Check whether a website is using the new HTTP/2 protocol or not.