Query all DNS record types — A, AAAA, CNAME, MX, TXT, NS, SOA, PTR, CAA, SRV — for any domain in one click.
The Domain Name System (DNS) is the internet's distributed phonebook, translating human-readable domain names to IP addresses and other data. A DNS record lookup queries the authoritative nameservers for a domain and returns the records of the requested type.
Maps a hostname to an IPv4 (A) or IPv6 (AAAA) address. The most fundamental DNS record — what your browser uses when you type a URL.
Canonical Name — aliases one hostname to another. Often used for www subdomains and CDN configurations. Cannot coexist with other records at the same name.
Text records carry arbitrary string data. Used for SPF email policy, domain ownership verification (Google, Microsoft), and DKIM public keys.
Start of Authority — contains the primary nameserver, responsible email address, zone serial number, and TTL settings for the zone.
When you visit a website, your device asks a recursive resolver (usually your ISP or 8.8.8.8). The resolver asks the root nameservers, which direct it to the TLD nameservers (e.g. .com), which direct it to the domain's own authoritative nameservers which finally return the answer.
Time To Live (TTL) is how long resolvers cache a DNS record before re-querying. Lower TTLs (60–300 s) allow faster updates; higher TTLs (3600+ s) reduce DNS query load.
Cached data — each resolver returns its cached value until TTL expires. During a DNS change, different resolvers worldwide will see the old and new values simultaneously.