What is an AAAA Record?

The AAAA record (or quad A record) points your hostname to an IPv6 address. The record AAAA specifies IP address (IPv6) for a given host. In other words, it resolves a domain name (or points the domain name) to the correct location by means of the IPv6 address. 

At present days, the DNS AAAA record is not as popular as the A record. Yet, its implementation is rapidly increasing as the adoption of IPv6 is expanding. The trend shows that IPv6 will become the most commonly used IP address version in the future.

The AAAA record has the following look in your ClouDNS Control Panel:

Host: Type: Points to: TTL
hostname.com AAAA ipv6:of:your:web::site 1 Hour

Why do you need an АААА record?

You need an AAAA record to ensure that your website or online resource can be accessed using IPv6 addresses. IPv4 addresses, the earlier type of IP address, are getting used up, making it vital to evolve to the newer IPv6 addresses.

Let's say you have a website hosted on a server that uses IPv6. You also have purchased a domain name for your site. Now you need to link them. Here is where the AAAA record comes in. It simply maps your domain to your server's IPv6 address.

How to create a DNS AAAA record?

Go to your Control Panel and click on Add new record. Type, as follow:
Type: AAAA
TTL: 1 Hour
Points to: ipv6:of:your:web::site

How to add an АААА record - Step by Step video:

How to check my AAAA record?

You can manually check the AAAA record for a domain name by using one of the following commands:

If you are a Windows user, you can open the Command Prompt and check your AAAA records via Nslookup. Here is an example:

$ nslookup -t AAAA domain.net

If you are a Linux/macOS user, you can open the Terminal and check your AAAA record via DIG. Here is an illustration:

$ dig domain.net AAAA

These commands will show you the corresponding IPv6 address for the domain. Additionally, if no AAAA record is found for the domain, the response will display it.

If you prefer to use an online tool, you can check your AAAA record with ClouDNS Free DNS tool.

AAAA record VS A record

Both records work in the same manner except for one small detail. With A record, the hostname is resolved to the corresponding IPv4 address. And with the AAAA record, the hostname is resolved to the corresponding IPv6 address. If you have doubts about whether to use A or AAAA, the answer is simple. If your server uses IPv6, you need an AAAA record. Otherwise, if it uses IPv4, then A is required.

AAAA record VS CNAME record

As we explained above, the AAAA record points your domain to the corresponding IPv6 address. On the other hand, CNAME records (for canonical name) map your hostname to another hostname. This is useful for pointing many hosts to the same place and updating them easily.

How to start managing АААА records for your domain name?

  1. Open free account from here - free forever
  2. Verify your e-mail address
  3. Log into your control panel
  4. Create new Master DNS from the [add new] button - read more here
  5. Add the AAAA records you need as it is described in this article

Common Issues and Troubleshooting

  • Propagation Delays: After updating or adding an AAAA record, the changes might not be immediately visible due to DNS propagation delays. This is normal and can take anywhere from a few minutes to 48 hours. Tools like DNS propagation checkers can help you monitor the status across different locations.
  • Incorrect AAAA Record Entries: Typos or entering an incorrect IPv6 address can lead to your site being inaccessible. Always double-check the IPv6 address for accuracy before saving the AAAA record.
  • Connectivity Issues: Not all internet service providers (ISPs) support IPv6 connectivity. Users on IPv4 might not be able to access your site if only an AAAA record is present. Ensure you have an A record as a fallback.
  • Firewall and Security Settings: Sometimes, firewall or security settings can block IPv6 connections. Ensure that your server’s firewall is configured to allow IPv6 traffic.
  • Troubleshooting: Use nslookup, dig, or ClouDNS Free DNS checking tool to verify that your AAAA record is correctly pointing to the intended IPv6 address. If issues persist, checking server logs and consulting with your hosting provider or DNS service can provide further insights.

Support of AAAA records

ClouDNS provides full support for AAAA records for all our DNS services, including the listed below. Just write to our technical support, if you need any assistance with your AAAA records configuration. Our Technical Support team is online for you 24/7 via live chat and tickets.


Question: Can I have two or even more AAAA records?

Answer: Yes, you can use multiple AAAA records for load-balancing. This way, your AAAA records for the same host will run in Round-Robin fashion.

Question: Can I have both an A and AAAA records for the same domain? 

Answer: Yes, you can. So that the domain can be accessed using either an IPv4 or IPv6 address.

Question: Is it possible to have an AAAA record without an A record? 

Answer: Yes, it is. Yet, in practice, it is best to have both so that your website can be accessed using both IPv4 and IPv6 connections.

Question: How long does it take for changes to an AAAA record to take effect?

Answer: Changes to an AAAA record typically take a few minutes to a few hours to take effect, depending on the propagation of the DNS changes across the internet.

Last modified: 2024-02-28
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