DNS · AAAA
AAAA Record Lookup
Look up the AAAA records for any domain to find its IPv6 address and confirm whether the site supports modern IPv6 routing.
Overview
What is an AAAA record?
An AAAA record (pronounced "quad-A") is a DNS record that points a domain name to an IPv6 address.
When you type a website name into your browser, it asks DNS for directions. If the website uses the modern IPv6 system, DNS returns an AAAA record containing the exact server address so your browser can connect.
Why do we need IPv6?
We simply ran out of space in the old system.
The old system (IPv4)
The original internet address system, IPv4, uses A records. It only had room for about 4.3 billion unique addresses. With everyone now owning phones, smart TVs, and computers, we ran out years ago.
The new system (IPv6)
IPv6 is the upgrade, using AAAA records. It is so massive it can provide trillions of trillions of unique addresses, ensuring every future device can connect to the internet.
Curious about the switch? Track global IPv6 adoption on the Google IPv6 Statistics page.
What does an IPv6 address look like?
Old IPv4 addresses are short and use numbers separated by dots (like 192.168.1.1).
IPv6 addresses are much larger, using eight groups of hexadecimal separated by colons. A long run of zeroes can be compressed to a double colon (::) to shorten the address.
Full IPv6 address
Shortened (compressed)
Answers
Frequently asked questions
What is an AAAA record?
An AAAA record (pronounced quad-A) is a DNS record that points a domain name to an IPv6 address. It does the exact same job as an A record, but uses the newer IPv6 format instead of the older IPv4 format.
Why is it called an AAAA record?
An older IPv4 address (used in A records) is 32 bits long. A new IPv6 address is 128 bits long, which is exactly four times larger. Therefore, the record name is four 'A's (AAAA).
Why does a domain say 'No Records Found'?
Not all websites support IPv6 yet. If a website only uses the older IPv4 system, it will only have an A record, and the AAAA lookup will return no results. This is still very common on the internet today.
Can a domain have both A and AAAA records?
Yes! Most modern websites have both. This is called 'dual-stack' support. It allows older devices on older networks to connect using IPv4, while newer devices connect using the faster, newer IPv6 system.
Do I need an AAAA record for my website?
It is highly recommended, but not strictly required. Setting up an AAAA record ensures your website is future-proof and can be accessed by users on IPv6-only connections, such as modern cellular networks.
More records
See every DNS record at once
Run a full DNS lookup for A, AAAA, MX, TXT, NS, CNAME, and more, or check the IP behind the address.