Yes. The tool is completely free and needs no account or sign-up.

You can check A, AAAA, CNAME, MX, TXT, NS, SOA and CAA records. Choose “All Records” to query every type in one go.

Yes. You can enter a root domain like example.com or any subdomain like blog.example.com.

The most common reasons are that the selected record type does not exist for that name, the domain was mistyped, or a recent DNS change has not propagated yet. Try “All Records” to see what does exist.

Yes. MX records show where your email is delivered, and TXT records hold your SPF policy. To check DMARC, look up the TXT record for _dmarc.yourdomain.com. For DKIM, look up TXT for selector._domainkey.yourdomain.com.

It queries public DNS resolvers (Google Public DNS, with Cloudflare as a backup) at the moment you click the button. Resolvers can cache answers until the TTL expires, so results may briefly differ from what your authoritative nameserver holds.

DNS answers are cached by resolvers around the world for the length of the record’s TTL. Until those caches expire, some users may still see the old values. This delay is commonly called DNS propagation.

Yes. After a migration, check the NS records to confirm your new nameservers are visible, and the A record to confirm your domain points to the new server’s IP address.

TTL (Time To Live) is the number of seconds a resolver may cache a record before asking again. Lower TTLs make changes appear faster, while higher TTLs reduce lookup traffic.

An A record maps a name directly to an IP address. A CNAME maps a name to another hostname, which then resolves to an IP address. A CNAME cannot normally coexist with other records on the same name.