Limits

Last Updated: Feb 06, 2018

Restrictions on the use of CDN

  • Real-name registration must be performed for accounts on the Alibaba Cloud official website.

  • A CDN domain must have an ICP license and be connected to Alibaba Cloud.

  • The origin site content of a CDN domain must be stored on Elastic Compute Service (ECS) or Object Storage Service (OSS). If the origin site content is not stored on Alibaba Cloud, access must be reviewed.

  • All domains attempting to access CDN must be reviewed. CDN access is not allowed in any of the following scenarios:

    • The CDN domain cannot be accessed normally or the content does not include any substantive information.

    • The CDN domain is for a private game server.

    • The CDN domain is used for role playing games or card games.

    • The CDN domain is for a P2P website.

    • The CDN domain is for a lottery website.

    • The CDN domain is for an illegal hospital or pharmaceutical website.

    • The CDN domain is for a site involving porn, gambling, drugs, etc.

    • An automatic timeout rejection occurs, and outputs the following: Your domain name is rejected because it failed to comply with CDN access rules. Reference the feedback and submit a qualified domain name to be reviewed again.

  • Domains that have accessed Alibaba Cloud CDN will be reviewed regularly. If any of the preceding violations are recorded, CDN acceleration for the associated domain will be immediately suspended and CDN services for all domains of the associated user will also be suspended.

  • When a CDN domain is in Deactivated status (including Not Approved status) for more than 30 days, the system will automatically delete records related to this domain name. If you need to continue CDN acceleration for this domain name, it will have to be added again.

Does accelerated content delivery take effect after a CDN domain is approved?

No. To implement accelerated content delivery, you must direct your domain to a Canonical Name (CNAME) domain generated by CDN and add a CNAME record at the Domain Name System (DNS) service provider.

Restriction on the number of CDN domains

The maximum number of CDN domains for each Alibaba Cloud account is 20. If additional CDN domains are needed, please submit a ticket requesting this service to Alibaba Cloud technical support.

Restriction on the number of IP origin sites

The maximum number of IP origin sites for each CDN domain is 20 (namely 20 IP addresses). If more IP origin sites are needed, please submit a ticket requesting this service to Alibaba Cloud technical support.

Restrictions on the number of cache refresh and push operations

  • URL refresh: 2000 items/day/account
  • Directory refresh: 100 items/day/account
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