Which DNS records does this tool resolve? It resolves A (IPv4), AAAA (IPv6), MX (mail), NS (name servers), TXT, CNAME, SOA, and CAA records, plus the reverse DNS (PTR) of the first A record.
Why are some records empty? A record type only appears when the domain publishes it. For example, many subdomains have no MX or CAA records, and a domain with a direct A record will not also show a CNAME at the apex.
Does this query my own resolver? No. The lookup runs from the server's resolver, so results reflect public authoritative DNS rather than your local network. Use the DNS Leak Test to inspect your own resolver path.
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