A & AAAA Record Lookup
Free A and AAAA record lookup. Check the IPv4 and IPv6 addresses a hostname resolves to, with TTLs. Instant DNS lookup, no login required.
About the A & AAAA Record Lookup
This free A and AAAA record lookup shows the IPv4 (A) and IPv6 (AAAA) addresses a hostname resolves to, with their TTLs. A records are the foundation of DNS - they connect a name to an address, and they matter for email because mail server hostnames and reverse DNS all depend on them.
Enter any hostname to see both its IPv4 and IPv6 records at once.
Frequently asked questions
What is an A record?
An A record maps a hostname to an IPv4 address. An AAAA record does the same for IPv6. Together they tell the internet which server a name points to.
What is the difference between A and AAAA records?
An A record returns an IPv4 address (like 192.0.2.1); an AAAA record returns an IPv6 address. A host can have both. This tool checks both at once.
What is TTL on a DNS record?
TTL (time to live) is how long resolvers cache the record before checking again. Lower TTLs propagate changes faster; higher TTLs reduce lookups.
Did this check reveal a problem?
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