ADVERT

AAAA Record Checker

Check AAAA records to confirm IPv6 addresses published for your domain and diagnose dual-stack issues.

How to use this tool

Enter the hostname you want to validate and query AAAA records.
Review returned IPv6 addresses plus TTL and resolver status details.
Export JSON/CSV output for rollout checks and incident evidence.

IPv6 readiness checks

Confirm dual-stack hostnames publish expected AAAA records.
Compare results across environments before enabling IPv6 globally.
Validate authority responses when records are missing or delegated.

Troubleshooting guidance

Ensure services are listening on IPv6 before publishing AAAA records.
Test resolved addresses with IPv6-specific network probes.
Use TTL values to plan cache-flush and propagation verification.

FAQ

What if only some regions return AAAA records?: This can indicate geo-based DNS behavior. Verify each edge or region has IPv6 fully enabled before announcing broad support.
Do clients automatically prefer IPv6?: Most modern systems use Happy Eyeballs and will try IPv6 when reachable, so firewall and routing policy must be ready.

ADVERT

DNS Record Lookup
Look up DNS A, AAAA, MX, TXT, CNAME, NS, and DNSSEC records instantly using Google's public resolver.
A Record Checker
Fetch IPv4 A records for any domain to verify hosting changes, check propagation, and troubleshoot routing or DNS misconfigurations with IPs at a glance.
MX Record Checker
List MX records to see which mail exchangers handle email for a domain and validate deliverability setups.
TXT Record Checker
Inspect TXT records for SPF, DKIM, DMARC, and verification tokens on any domain to validate email setups, third-party integrations, and deliverability.
CNAME Record Checker
Run a CNAME lookup to reveal aliases and see how hostnames map to canonical domains, CDNs, and services. Verify routing, redirects, and DNS setups during migrations.
NS Record Checker
List the authoritative name servers for a domain and confirm delegation, helpful for DNS changes, registrar updates, and troubleshooting resolution issues.

ADVERT