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AAAA Record Lookup

Look up the IPv6 addresses a hostname points to.

Free, no account needed.

About AAAA records

An AAAA ("quad-A") record is the IPv6 version of an A record. With more and more networks using IPv6, publishing AAAA records lets those visitors reach you directly.

For mail servers, only publish AAAA records if the server really accepts mail over IPv6 and has reverse DNS set for that address. Senders that prefer IPv6 will use it.

Frequently asked questions

Do I need AAAA records?

Not strictly, since IPv6 users can usually still reach IPv4 addresses, but they improve performance and future-proof your setup.

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