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AAAA Record Lookup

Maps a domain name to an IPv6 address.

RFC: RFC 3596
TYPE: Resource Record
PROTOCOL: IPv6

What is AAAA Record Lookup?

The AAAA record is the IPv6 equivalent of the A record. It allows a domain name to be associated with a 128-bit IPv6 address.

How it Works

Similar to an A record lookup, but specifically requesting the IPv6 address from the DNS server.

Key Use Cases

Enabling IPv6 connectivity for a website.

Complying with modern networking standards.

Improving connectivity for mobile users on IPv6-only networks.

Advanced Details

Dual-stacking (having both A and AAAA records) is the recommended way to transition to IPv6 while maintaining compatibility with older IPv4-only systems.

Cybersecurity Pros & Cons

Security Advantages
  • IPv6's massive address space makes IP scanning and enumeration attacks significantly more difficult.
  • Enables access for users on IPv6-only mobile networks, improving security posture and reach.
  • Dual-stack configurations provide redundancy, reducing total outage during targeted IPv4 DDoS attacks.
  • IPv6 addresses are harder to spoof due to stateless address autoconfiguration (SLAAC) and longer addresses.
Security Limitations
  • Many legacy firewall and IDS rules are IPv4-only, creating security blind spots for IPv6 traffic.
  • IPv6 security monitoring tools are less mature, increasing risk of undetected intrusions.
  • Misconfigured dual-stack can expose internal IPv6 infrastructure that was previously hidden behind NAT.
  • ISP-level IPv6 filtering and geoblocking capabilities are less sophisticated than IPv4.
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