Free AAAA Record Lookup.
Find the IPv6 address behind any domain in seconds. Confirm TTL values, verify DNS changes, and catch issues before they impact your site.
AAAA Record Lookup.
How does AAAA Record Lookup work?
Enter a domain name (e.g., example.com) and click “Check”. Our tool queries DNS for AAAA records and returns the IPv6 address(es) currently associated with that domain—plus useful details like TTL (time-to-live) to help you validate changes and troubleshoot caching.
What is an AAAA record?
An AAAA record maps a domain or subdomain to an IPv6 address. It’s the IPv6 version of an A record and is used when your website, API, or infrastructure is reachable over IPv6.
When should you check an AAAA record?
- When a site works on some networks but fails on others (IPv6 vs IPv4)
- After enabling IPv6 on your hosting, CDN, or load balancer
- When verifying DNS changes during a migration
- When troubleshooting connectivity issues for IPv6-capable clients
AAAA record vs A vs CNAME
AAAA: Points a domain to an IPv6 address
A: Points a domain to an IPv4 address
CNAME: Alias from one hostname to another (common for app integrations)
Get 50 monitors with 5-minute checks totally FREE.
Try UpTimeRobot - the world's leading website monitoring service!
Start monitoring for freeFrequently asked questions.
What is an AAAA record?
An AAAA (quad-A) record maps a domain or hostname to an IPv6 address—the IPv6 equivalent of an A record for IPv4.
How do I check the AAAA record for my domain?
Enter your domain above and click Check. We’ll return any IPv6 addresses currently published as AAAA records, along with their TTL.
Do I need an AAAA record if I already have an A record?
Not always. Keep only an A record if your site isn’t reachable over IPv6. Add an AAAA record when your host/CDN/load balancer supports IPv6, and you want IPv6 connectivity.
Why can an incorrect AAAA record break the site for some visitors?
If a client prefers IPv6 and your AAAA points to an unreachable IPv6 address, those users may see timeouts or errors even though IPv4 still works.
Can I have multiple AAAA records?
Yes—multiple IPv6 addresses are common for redundancy, load balancing, or geo-distribution.
If I publish both A and AAAA, which one gets used?
Many modern clients request both and connect using whichever works best (often trying IPv6 first, then falling back quickly to IPv4).
Why don’t I see my new AAAA record immediately?
DNS results can be cached based on TTL. If you recently updated the record, some resolvers may keep returning the old value until the cache expires.
Get your FREE account now, 50 monitors included!
Try UpTimeRobot - the world’s leading website monitoring service!
Start monitoring for free
Incident management
Status pages
MCP
Integrations