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DNS Lookup

Query DNS records for any domain — A, AAAA, CNAME, MX, NS, TXT, SOA, and more. See all DNS data at once.

Frequently Asked Questions

Common questions about the DNS Lookup tool.

A maps a hostname to an IPv4 address. AAAA maps to IPv6. CNAME points one name to another. MX lists mail servers. TXT holds free-form text (SPF, DKIM, domain verification). NS lists name servers authoritative for the zone.

Time-To-Live is how long (in seconds) a resolver is allowed to cache the record before re-querying. Short TTL (60–300s) is useful for fast fail-over; long TTL (3600–86400s) reduces DNS query load.

Either the record was recently changed (and some resolvers still have the old value cached), or the domain uses GeoDNS / EDNS Client Subnet to return different answers based on the resolver's location.

Authoritative DNS servers hold the real records for a domain. Recursive resolvers (like 8.8.8.8 or your ISP's DNS) query the authoritatives on your behalf and cache the answers.

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