DNS AAAA Record Lookup - Check Domain IPv6 Addresses
No logs stored • Server-side processing
Find IPv6 addresses for any domain. View 128-bit addresses, TTL values, and compare with IPv4 A records. Verify IPv6 support for modern network compatibility.
Free IPv6 Address Lookup Tool
Enter a domain above to get started
We'll show you A, AAAA, MX, CNAME, TXT, NS, SOA, and CAA records
Find IPv6 Addresses for Any Domain with AAAA Record Lookup
AAAA records (pronounced 'quad-A') are DNS records that map domain names to IPv6 addresses—the modern 128-bit internet addressing system. While A records point to IPv4 addresses (like 93.184.216.34), AAAA records point to IPv6 addresses (like 2606:2800:220:1:248:1893:25c8:1946). With IPv4 addresses nearly exhausted, IPv6 is the future of internet connectivity. Major sites like Google, Facebook, and Cloudflare already support IPv6. Our AAAA lookup tool helps you verify if domains are IPv6-ready.
What You'll Discover
Can Find
- IPv6 addresses (AAAA records) for any domain
- TTL values showing how long records are cached
- Multiple AAAA records for load-balanced or CDN-enabled domains
- DNSSEC status (signed or unsigned)
- All 8 DNS record types via tabs (A, MX, CNAME, TXT, NS, SOA, CAA)
Cannot Find
- IPv4 addresses (use A Record Lookup tab)
- IPv6 connectivity test (shows DNS records, not your connection)
- Real-time DNS propagation status (use DNS Checker)
- Whether the IPv6 address is reachable (DNS only)
How to Look Up AAAA Records
Find IPv6 addresses for any domain in seconds
Enter the Domain
Type the domain you want to check IPv6 support for (e.g., google.com). URLs with https:// and www prefixes are automatically cleaned.
Click Lookup
We query DNS servers to retrieve AAAA records containing IPv6 addresses. Results appear in under 500 milliseconds.
View IPv6 Addresses
See all AAAA records with full 128-bit IPv6 addresses in compressed notation. Use the copy button to copy any address instantly.
Compare with IPv4
Switch to the A record tab to see IPv4 addresses for the same domain. This helps verify dual-stack configuration (both IPv4 and IPv6).
Understanding Your AAAA Record Results
What each field in your AAAA records reveals
IPv6 Address
The 128-bit IPv6 address where the domain is hosted. Displayed as 8 groups of 4 hexadecimal digits separated by colons. Consecutive zero groups may be compressed with '::'. For example, 2607:f8b0:4004:800::200e is an abbreviated form. Click the copy button to copy any address.
2606:2800:220:1:248:1893:25c8:1946
TTL (Time To Live)
How long DNS resolvers cache this AAAA record before checking for updates. We display TTL in human-readable format: '5m' = 5 minutes, '1h' = 1 hour, '24h' = 24 hours. Lower TTL means faster propagation of changes but more DNS queries.
5m (300 seconds)
Record Count
The number of AAAA records for the domain. Multiple AAAA records indicate load balancing across IPv6 servers, CDN usage with IPv6 edge locations, or redundancy. Google.com, for example, has multiple AAAA records.
1 AAAA record
DNSSEC Status
Whether the domain has DNSSEC (DNS Security Extensions) enabled. DNSSEC adds cryptographic signatures to DNS records, preventing spoofing and cache poisoning attacks. Green = enabled with DNSKEY and DS records.
Disabled
Response Time
Time taken to query and return all DNS records. Cached queries are faster (< 50ms) than fresh lookups (< 500ms). Slow responses may indicate DNS server issues or network latency.
142ms
Why Choose Our AAAA Record Lookup Tool
Focused IPv6 lookup with complete DNS visibility
IPv6 Focused
Opens directly on the AAAA records tab for instant IPv6 address visibility. No hunting through menus—get IPv6 information immediately.
A vs AAAA Comparison
Switch between A (IPv4) and AAAA (IPv6) tabs with one click. Verify dual-stack configuration by comparing IPv4 and IPv6 addresses for the same domain.
8 DNS Record Types
AAAA is the default, but A, MX, CNAME, TXT, NS, SOA, and CAA are available via tabs. One lookup gives you the complete DNS picture without switching tools.
Human-Readable TTL
TTL values displayed as '5m', '1h', '24h' instead of confusing seconds. Instantly understand how long records are cached without mental math.
One-Click Copy
Click any IPv6 address to copy it to your clipboard instantly. Long IPv6 addresses are tedious to type—copy them perfectly every time.
Export to JSON/CSV/TXT
Download your AAAA record lookup results in multiple formats. JSON for APIs and automation, CSV for spreadsheets, plain text for documentation.
When You Need AAAA Record Lookup
Common scenarios where checking IPv6 records is essential
IPv6 Compatibility Check
Verify if a website supports IPv6 connectivity. With IPv4 addresses nearly exhausted and mobile networks increasingly IPv6-only, dual-stack support ensures your domain is accessible to all users worldwide.
IPv6 Migration Verification
Deploying IPv6 on your infrastructure? Use AAAA lookup to confirm your DNS changes are live. Verify the IPv6 address matches your server or CDN before announcing the migration complete.
Network Configuration
Get IPv6 addresses for firewall rules, access control lists, and server configurations. Copy the exact IPv6 address from our results—no typos in those long hexadecimal strings.
Dual-Stack Verification
Confirm a domain has both A (IPv4) and AAAA (IPv6) records configured. Use our tab switching to compare both address types. Proper dual-stack ensures maximum compatibility.
Security Analysis
Verify expected IPv6 addresses during security audits. Compare AAAA records against known-good IPs to detect potential DNS hijacking or unauthorized changes.
How AAAA Records Work
Understanding AAAA records is essential for modern network administration, IPv6 deployment, and ensuring future-proof connectivity.
What is an AAAA Record?
AAAA records (pronounced 'quad-A') map domain names to IPv6 addresses. The 'AAAA' name reflects that IPv6 addresses are four times longer than IPv4 (128 bits vs 32 bits). While an A record stores addresses like 93.184.216.34, an AAAA record stores addresses like 2606:2800:220:1:248:1893:25c8:1946. IPv6's massive address space (340 undecillion addresses) solves IPv4's exhaustion problem.
A Record vs AAAA Record
A records store 32-bit IPv4 addresses in dotted-decimal format (93.184.216.34). AAAA records store 128-bit IPv6 addresses in hexadecimal format with 8 groups separated by colons. Both map domain names to IP addresses—they just use different IP versions. Modern websites should have both record types (dual-stack) to support all users. IPv6-only networks are growing, especially in mobile and Asia-Pacific regions.
IPv6 Address Format
IPv6 addresses have 8 groups of 4 hexadecimal digits (0-9, a-f) separated by colons. Leading zeros in groups can be omitted (0042 becomes 42). Consecutive groups of zeros can be replaced with '::' once per address. So 2001:0db8:0000:0000:0000:0000:0000:0001 becomes 2001:db8::1. Our tool displays addresses in standard compressed notation for readability.
Why Dual-Stack Matters
IPv4 addresses (4.3 billion total) are exhausted. IPv6 provides 340 undecillion addresses for future growth. Major ISPs and mobile networks increasingly prefer IPv6. Google reports 45%+ of traffic is now IPv6. Having both A and AAAA records (dual-stack) ensures your domain is reachable by everyone—whether they connect via IPv4 or IPv6. It's not a question of if you need IPv6, but when.
AAAA Record Lookup Specifications
- Record Types
- AAAA (default), A, MX, CNAME, TXT, NS, SOA, CAA
- IP Format
- IPv6 128-bit hexadecimal with :: compression
- Multiple Records
- Shows all AAAA records for load-balanced domains
- TTL Display
- Human-readable (5m, 1h, 24h) + seconds
- DNSSEC Detection
- DNSKEY and DS record checking
- Response Time
- < 500ms (cached: < 50ms)
- Cache Duration
- 5 minutes (300 seconds)
- Export Formats
- JSON, CSV, Plain Text
- API Access
- REST API at /api/v1/dns-lookup
Frequently Asked Questions
What is an AAAA record?
AAAA (pronounced 'quad-A') records map domain names to IPv6 addresses. They're the IPv6 equivalent of A records (which map to IPv4). The name 'AAAA' comes from IPv6 addresses being 4× longer than IPv4 addresses (128 bits vs 32 bits). Every IPv6-enabled website has AAAA records pointing to its IPv6 server addresses.
What is the difference between A and AAAA records?
A records store 32-bit IPv4 addresses (like 93.184.216.34), while AAAA records store 128-bit IPv6 addresses (like 2606:2800:220:1:248:1893:25c8:1946). Both map domain names to IP addresses—just different versions. Modern websites should have both for maximum compatibility. Use our tab switching to compare A and AAAA records for any domain.
Do I need both A and AAAA records?
Yes! Dual-stack hosting (both IPv4 and IPv6) ensures your site is accessible to all users. Some mobile networks and regions are IPv6-only or IPv6-preferred. Over 45% of Google's traffic is IPv6. Major sites like Google, Facebook, Netflix, and Cloudflare support both. Not having AAAA records may make your site slower or inaccessible for IPv6 users.
Why is it called 'quad A' or AAAA?
IPv6 addresses are 4× longer than IPv4 addresses—128 bits compared to 32 bits. The 'AAAA' name (four A's) signifies this 4× size increase over a single 'A' record. It's a simple naming convention: A for IPv4, AAAA (quad-A) for the 4× larger IPv6.
How do I read an IPv6 address?
IPv6 addresses have 8 groups of 4 hexadecimal digits separated by colons (0-9 and a-f). Leading zeros can be dropped (0042 → 42). Consecutive zero groups can be replaced with '::' once per address. Example: 2001:0db8:0000:0000:0000:0000:0000:0001 compresses to 2001:db8::1. Our tool shows addresses in standard compressed notation.
How long does AAAA record propagation take?
AAAA records typically propagate within 1-48 hours, depending on the previous TTL value. If the TTL was 24 hours, some DNS servers will cache the old address for up to 24 hours. To speed up propagation, lower the TTL before making changes. Use our DNS Checker to monitor AAAA record propagation across global DNS servers.
Can I compare A and AAAA records?
Yes! Our tool lets you switch between the A tab (IPv4) and AAAA tab (IPv6) to compare addresses for the same domain. This helps verify dual-stack configuration—confirming the domain has both IPv4 and IPv6 addresses properly configured for maximum compatibility.
Why doesn't my domain have AAAA records?
Many domains still only have IPv4 (A records). AAAA records require both your hosting provider AND DNS to support IPv6. If you see no AAAA records, your domain doesn't currently support IPv6 connections. Contact your hosting provider about IPv6 support—it's increasingly important as IPv4 addresses run out.
What does the TTL value mean for AAAA records?
TTL (Time To Live) tells DNS resolvers how long to cache the AAAA record before checking for updates. We display it in human-readable format: '5m' = 5 minutes, '1h' = 1 hour. Lower TTL means faster DNS propagation of changes but more DNS queries. Higher TTL reduces DNS load but slows changes. Standard TTL is 300-3600 seconds.
Can you reverse lookup an IPv6 address?
Yes, but it requires a different process. AAAA lookup is forward DNS (domain → IPv6). For reverse DNS (IPv6 → domain), you need a PTR record lookup. IPv6 reverse lookups use the ip6.arpa domain with the address reversed nibble-by-nibble. Our Reverse IP Lookup tool can help with PTR record queries.
Check Any Domain's IPv6 Records Now
Enter a domain above to find AAAA records, IPv6 addresses, and TTL values. Free, fast, no registration required.
Try Another Lookup