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Last Updated: Jun 21, 2019


Item Upper limit Description
The number of private zones. 128 You can add up to 128 private zones in an account.
The number of VPCs associated with a private zone. 32 Each private zone can be associated with a maximum of 32 VPCs.
The number of records. 10,000 You can add a maximum of 10,000 records in each private zone.
The number of queries per second sent by an ECS instance. 5,000 queries per second Each ECS instance can send 5,000 DNS queries per second.

The 99.9% availability SLA may be compromised if the number of DNS queries per second exceeds the limit.