Change content:

In order to ensure the access performance and stability of the batch configuration API for CDN and DCDN products, Alibaba Cloud will gradually reduce the number of domain names that can be configured in a single batch configuration API according to the following plan.

• On April 9, 2026, the number of domain names that can be configured in a single API will be adjusted from 50 to 40
• On April 23, 2026, the number of domain names that can be configured in a single API will be adjusted from 40 to 30
• On May 7, 2026, the number of domain names that can be configured in a single API will be adjusted from 30 to 20

CDN products involve the following two APIs:

• BatchSetCdnDomainConfig - Batch Set CDN Domain Configuration
• BatchDeleteCdnDomainConfig - Batch Delete CDN Domain Configuration

DCDN products involve the following three APIs:

• BatchSetDcdnDomainConfigs - Batch Set DCDN Domain Name Configuration
• BatchDeleteDcdnDomainConfigs - Batch Delete DCDN Domain Name Configuration
• BatchSetDcdnIpaDomainConfigs - Batch Set IPA Layer Application Acceleration Domain Configuration

Change impact:

The change will be completed in three stages, each of which will reduce the number of domain names that can be configured by the API at a time. After the change takes effect, if the number of domain names requested by the API for batch configuration exceeds the new upper limit, the API will return an error message.

If you need to batch configure a large number of domain names, you can configure them in batches according to the upper limit of API support for batch configuration.

The purpose of this change is to provide users with a better user experience. We deeply apologize for any inconvenience this may cause. If you have any questions, please feel free to contact us through the ticket or service hotline at any time.