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If you’ve only configured A records, you may still see a large number of AAAA queries in your DNS logs. This is expected behavior.

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Why this happens

The global shortage of IPv4 addresses has driven a large-scale migration to IPv6 networks. Most global infrastructure currently runs IPv4 or a dual stack of IPv4 and IPv6, but the migration to IPv6 is ongoing. As a result, many clients, browsers, and applications on IPv6-enabled networks now prioritize IPv6 lookups. When resolving a domain, they first issue an AAAA query to look for an IPv6 address. If no AAAA record is configured, they fall back to an A query for an IPv4 address. Bunny DNS logs these AAAA queries with an empty answer. The queries are harmless.

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Recommendation

Configure both A and AAAA records for your domain when possible. This avoids the fallback round-trip and improves resolution time, which can improve overall performance for your website or application.