Authoritative DNS latency

Affected:

DNS & reverse DNS

Duration

1 h 18

Reference

inc-20250819-1

Timeline

1. Resolved19 Aug 2025, 12:56 UTC

   Resolved. The node was returned to service with rate limiting enabled.

2. Monitoring19 Aug 2025, 12:34 UTC

   Response times are back to normal.

3. Identified19 Aug 2025, 11:49 UTC

   One anycast node is overloaded by a query flood; it has been withdrawn from the anycast set.

4. Investigating19 Aug 2025, 11:38 UTC

   DNS queries to our authoritative servers are answering slower than usual from some regions.

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