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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.

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.

Verify the time to first byte of any website.

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