Alibaba Cloud DNS Public Zone Free Edition detects and removes invalid domain name resolution data starting November 2024 to improve DNS security and prevent resource conflicts.
Products affected
This cleanup applies only to invalid domain name resolution data in Alibaba Cloud DNS Public Zone Free Edition and does not affect the Alibaba Cloud Domain Name Registration service.
Effective time
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November 16, 2024, 00:00 UTC+8: System detection of invalid domain name resolution data begins.
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December 16, 2024, 00:00 UTC+8: Deletion of invalid data begins.
Notification details
What's changing
To strengthen DNS security and prevent malicious occupation of resolution resources that can cause conflicts when adding domains, Alibaba Cloud DNS Public Zone Free Edition will detect and remove invalid domain name resolution data on the schedule above.
How invalid domain names are identified
A domain name and its resolution data are considered invalid only if both of the following conditions are met:
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The domain uses Public Zone but is not registered with Alibaba Cloud.
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The domain's DNS server addresses are not configured to point to Public Zone server addresses.
Invalid domain names and their resolution data are deleted after 30 consecutive calendar days of meeting these conditions.
How you'll be notified
Alibaba Cloud monitors your domain's DNS server address configuration. If your domain has invalid DNS resolution data for 1, 10, or 20 consecutive days, the system sends reminders via email and internal messages prompting you to configure the correct DNS server addresses. To receive these notifications, subscribe to Alibaba Cloud DNS notifications in Basic Receiving Management.
What you need to do
To keep your domains and resolution records, complete the following action before the system deletes the data:
After configuring resolution data in Alibaba Cloud DNS, update your domain's DNS server addresses at your domain registrar to use the DNS server addresses assigned by Alibaba Cloud DNS Public Zone. For details, see How to Smoothly Migrate Domain Name Resolution to Alibaba Cloud DNS.
What's not affected
Deleting invalid domain name resolution data does not affect normal domain resolution with other DNS providers. Your website or service remains fully functional, and domains registered with Alibaba Cloud are not affected.