DNS Lookup

DNS connects a domain to an IP address (A, AAAA), mail servers (MX), and subdomains (CNAME). Without DNS, a browser can't find a server by name. Records are cached according to their TTL.

DNS cache. TTL sets how long records are cached. Wait or lower the TTL before making a change. Check with different servers using nslookup, dig, or our DNS Lookup.

Choose the MX type in DNS Lookup to see mail servers and their priorities. A lower priority value means higher delivery priority. Check your hosting settings.

TXT is free-form text. It's used for verification (Google, Yandex), SPF (email), and DKIM. DNS Lookup shows all TXT records for a domain.

A — IPv4 (32 bits). AAAA — IPv6 (128 bits). Modern websites have both records. IPv6 speeds up access for users with IPv6.