AAAA Record
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Definisi
Rekaman DNS yang memetakan nama domain ke alamat IPv6. Dinamakan "AAAA" (quad-A) karena alamat IPv6 berukuran empat kali lipat dari alamat IPv4.
The AAAA Record Format
The AAAA record (pronounced "quad-A") is the IPv6Internet Protocol version 6. The successor to IPv4 using 128-bit addresses (e.g., 2001:0db8::1), providing a virtually unlimited address space of 3.4 x 10^38 addresses. Designed to solve IPv4 address exhaustion. analogue of the A RecordA DNS record that maps a domain name to an IPv4 address (e.g., example.com -> 93.184.216.34). The most fundamental DNS record type for resolving domain names to IP addresses.. It maps a domain name to a 128-bit IPv6 address. A typical AAAA record looks like: example.com. 3600 IN AAAA 2606:2800:220:1:248:1893:25c8:1946. The four As informally reflect that IPv6 is four times the bit-width of IPv4.
A domain serving dual-stack — supporting both IPv4Internet Protocol version 4. The fourth revision of IP using 32-bit addresses (e.g., 192.168.1.1), providing approximately 4.3 billion unique addresses. Still the most widely used internet protocol despite address exhaustion. and IPv6Internet Protocol version 6. The successor to IPv4 using 128-bit addresses (e.g., 2001:0db8::1), providing a virtually unlimited address space of 3.4 x 10^38 addresses. Designed to solve IPv4 address exhaustion. — publishes both A and AAAA records. Clients prefer IPv6 when both records exist, following RFC 6555 ("Happy Eyeballs"), which races IPv4 and IPv6 connections and uses whichever succeeds first, typically favoring IPv6 with a small delay before starting the IPv4 attempt.
AAAA Records and Modern Infrastructure
Major platforms (Google, Facebook, Cloudflare, Akamai) have served AAAA records for years. As of 2024, a substantial fraction of global internet traffic is IPv6. However, many smaller websites and enterprise services still lack AAAA records, relying on ISP-level NAT64/DNS64 to allow IPv6-only clients to reach them.
Publishing AAAA records requires that your hosting infrastructure actually has an IPv6 address. Cloud providers (AWS, GCP, Azure) assign IPv6 addresses to resources on request, and CDNs like Cloudflare automatically assign IPv6 addresses to all proxied domains.
Troubleshooting AAAA Records
AAAA resolution failures are a common source of intermittent connectivity problems. A site publishing a AAAA record that points to a non-listening server will cause IPv6-preferring clients to experience timeouts before falling back to IPv4 — appearing as slow page loads. Always verify that your server actually listens on the IPv6 address your AAAA record advertises.
Query AAAA records with DNS Lookup by selecting the AAAA record type.