After you enable the global resource plan, more points of presence (POPs) are available to accelerate content delivery for your website. This plan covers more regions outside the Chinese mainland and improves access experience for your website. Alibaba Cloud and global partners cooperate to provide the global resource plan.
POP distribution
The global resource plan covers more than 200 POPs worldwide. The following table provides the geographical distribution of POPs.
Billable region | Geographical distribution |
North America | United States, Canada, and Mexico |
South America | Brazil, Argentina, Colombia, Chile, and Peru |
Europe | United Kingdom, Germany, Italy, Netherlands, France, Sweden, Austria, Spain, Poland, Belgium, Switzerland, Portugal, Bulgaria, Croatia, Czech, Denmark, Finland, Greece, Hungary, Ireland, Norway, and Romania |
Asia Pacific 1 | Hong Kong (China), Taiwan (China), Japan, Singapore, Philippines, Malaysia, and Thailand |
Asia Pacific 2 | Republic of Korea, India, Vietnam, and Indonesia |
Asia Pacific 3 | Australia and New Zealand |
Middle East and Africa | Israel, United Arab Emirates, South Africa, Oman, Nigeria, Bahrain, and Kenya |
Supported features
Domain names for which you enable the global resource plan do not support POST requests.
Category | Feature | Description | |
Basic settings | Alibaba Cloud CDN supports the following types of origin servers: Object Storage Service (OSS) domain names, IP addresses of origin servers, domain names of origin servers, and Function Compute domain names. You can specify one or more origin servers of each type and specify primary and secondary origin servers to balance loads. | ||
You can enable IPv6 to allow IPv6-capable clients to send requests to Alibaba Cloud CDN over IPv6. Alibaba Cloud CDN also carries the IPv6 information of the clients to access your origin server. | |||
Origin fetch settings Note By default, the range origin fetch feature is enabled and cannot be disabled. To disable the range origin fetch feature, submit a ticket. | If multiple sites are hosted on your origin server, and the site from which the content is retrieved is different from the site to which the accelerated domain name points, you need to configure the default origin host. An origin host specifies the site to which Alibaba Cloud CDN redirects requests. | ||
If an accelerated domain name is configured with multiple origin servers, and you want to retrieve resources from different virtual sites based on the value of the HOST header, you can specify the origin host for each origin server. | |||
Alibaba Cloud CDN uses the protocol that is specified by the origin protocol policy to retrieve resources from an origin server. After you configure the origin protocol policy, Alibaba Cloud CDN redirects HTTP requests to port 80 or HTTPS requests to port 443. The protocol that Alibaba Cloud CDN uses is determined by the origin protocol policy. | |||
If you configure a private OSS bucket as your origin server, we recommend that you authorize Alibaba Cloud CDN to access the OSS bucket and enable the private bucket access feature. This feature can be used for access authentication and to protect origin servers from unauthorized access. You can also include the authentication information in user requests to access private OSS buckets. | |||
You can configure a timeout period for origin fetch HTTP requests to efficiently manage the connections between POPs and your origin server. If the timeout period for origin fetch requests is too short, origin fetch requests may fail when network connections are unstable. If the timeout period for origin fetch requests is too long, failed requests will continue to occupy connections until they expire. This may cause normal requests to fail when the maximum number of connections to the origin server is reached. We recommend that you configure the timeout period based on your network connectivity and the maximum number of connections that your origin server can handle to ensure that requests can be redirected to the origin server as expected. | |||
Cache settings | Time-to-live (TTL) is the amount of time that a resource is cached on Alibaba Cloud CDN points of presence (POPs). When the TTL of a cached resource ends, the resource on the POPs expires. Requests that attempt to access expired resources are redirected to the origin server. The retrieved resources are returned to the clients and cached on the POPs. You can create a cache rule for static resources based on file directories or file name extensions. | ||
HTTPS settings Note By default, TLS 1.2 is supported. You cannot modify the settings. To use TLS 1.0 or TLS 1.1, submit a ticket. | Note Only 2048- and 3072-bit RSA keys are supported. | Alibaba Cloud CDN supports HTTPS secure acceleration. You can upload a custom SSL certificate or select an SSL certificate from Certificate Management Service in the Alibaba Cloud CDN console. If you want to enable HTTPS to ensure the security of data transmission, SSL certificates are required. | |
HTTP/2, originally named HTTP/2.0, is another revision of the HTTP network protocol after HTTP/1.1. HTTP/2 supports binary framing, multiplexing, and header compression. HTTP/2 greatly improves web performance and reduces network latency. | |||
Note Only the default redirection type and HTTP to HTTPS are supported. | You can configure the URL redirection feature to forcibly redirect requests from clients to POPs to HTTPS. | ||
Refresh and prefetch | Refresh and prefetch resources Note Only cache refresh is supported. | The cache refresh feature marks all resources that are cached on POPs as expired. When a POP receives a request, the POP redirects the request to the origin server to retrieve the requested resources. The retrieved resources are returned to the client and cached on the POP. The refresh feature reduces the cache hit ratio. | |
Tools and services | You can use this feature to query whether an IP address belongs to a POP, and the region and Internet service provider (ISP) to which an IP address belongs. | ||
Security protection | Certificate service | Alibaba Cloud CDN supports HTTPS secure acceleration. You can upload a custom SSL certificate or select an SSL certificate from Certificate Management Service in the Alibaba Cloud CDN console. If you want to enable HTTPS to ensure the security of data transmission, SSL certificates are required. | |
You can query SSL certificates that are configured for your domain names, and check the status of the certificates. | |||
Usage query | You can query resource usage of specified domain names. You can set different filter conditions to query specific usage information, including bandwidth values, network traffic, and the number of HTTPS or QUIC requests. You can query information by accelerated domain name, time range, and billable region. | ||
Alibaba Cloud CDN allows you to query the details of resource plans that you have purchased on the Resource Plans page, such as the total capacity, remaining capacity, and expiration time. | |||
How to configure the global resource plan
You can turn on Global Resource Plan when you add a domain name. This way, more POPs are available to accelerate content delivery for your website. For more information, see Add a domain name.