Understanding DNS Record Types & Propagation
When you purchase a domain or point it to a new server, the change needs to propagate across global DNS caches. This process can take anywhere from a few minutes to 48 hours depending on Time To Live (TTL) parameters. Our free checker uses geographically distributed DNS resolvers to verify propagation instantly.
A Record
Maps a domain name to its IPv4 address (e.g. 93.184.216.34).
AAAA Record
Maps a domain name to its newer IPv6 address (e.g. 2606:2800:220:1:248:1893:25c8:1946).
MX Record
Mail Exchange records routing emails to appropriate mail servers with specified priority.
TXT Record
Text strings used for site verification, SPF protocols, and security handshakes.
NS Record
Nameserver records indicating which DNS servers are authoritative for a domain.
CNAME Record
Canonical Name records mapping aliases to standard hostnames (used for subdomains).