DNS lookup - A, AAAA, MX, CNAME, TXT, NS, SOA & CAA

One query per record type, because that is how DNS works

There is no single DNS query that returns "everything" about a domain - each record type (A, MX, TXT, and so on) is its own lookup against the domain's authoritative servers. This tool runs all eight of the common ones for you and lays the answers out together, so you are not switching tabs between a dozen single-purpose checkers.

What each type is for

• A / AAAA - the IPv4/IPv6 address a hostname points to.
• CNAME - an alias pointing at another hostname.
• MX - which mail servers accept email for the domain, and their priority.
• NS - which nameservers are authoritative for the domain.
• TXT - free-form text, most often SPF/DKIM/DMARC or domain-ownership verification.
• SOA - the zone's administrative record: primary nameserver, serial number, refresh/retry/expire timers.
• CAA - which certificate authorities are allowed to issue TLS certificates for the domain.

Why an answer can differ from what you expect

A DNS answer reflects what the resolver you asked currently has - either fresh from the authoritative server, or served from its own cache until the record's TTL expires. A recent change may not show everywhere at once; see the DNS propagation checker for comparing several resolvers directly.

Related tools

For a focused check use the single-type lookups: MX, TXT, NS. For mail authentication specifically, see SPF, DMARC and DKIM.