DNS Lookup
Resolve the DNS records for any domain — A, AAAA, CNAME, MX, TXT, NS, SOA and CAA — straight from public name servers, with their TTLs. Fast, free and nothing is stored.
About DNS records
Every domain publishes a small set of DNS records that tell the internet where to send traffic: A/AAAA point a name at an IPv4/IPv6 server, CNAME aliases one name to another, MX lists the mail servers that accept email for the domain, TXT holds verification and anti-spoofing policies such as SPF and DKIM, NS names the authoritative servers, SOA describes the zone, and CAA restricts which certificate authorities may issue SSL certificates. This tool reads them live over public DNS, so you see the globally-visible answer.
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Frequently asked questions
What is a DNS lookup?
DNS (Domain Name System) is the internet's address book. A DNS lookup asks the name servers which records a domain publishes — the IP addresses it points to (A / AAAA), its mail servers (MX), text records (TXT, e.g. SPF/DKIM/verification), name servers (NS) and more.
What do the record types mean?
A = IPv4 address, AAAA = IPv6 address, CNAME = alias to another name, MX = mail server (with priority), TXT = free-form text (SPF, DKIM, domain verification), NS = authoritative name servers, SOA = zone start-of-authority, CAA = which CAs may issue certificates.
What is TTL?
TTL (Time To Live) is how long, in seconds, a resolver may cache the record before asking again. A low TTL means changes propagate faster; a high TTL means fewer lookups but slower propagation.
Why are the results different from my local DNS?
This tool resolves over public DNS, so it shows the authoritative, globally-visible records. Your device or ISP may still be caching older values until their TTL expires, so a recent change can take time to appear everywhere.
Does it store the domains I look up?
No. The lookup runs to return the result for that request and nothing is stored by this tool. For a certificate check use the SSL Checker, and for IPs the IP Lookup.