This topic describes the release notes for Alibaba Cloud CDN and provides links to the relevant references.
2023
Feature | Description | Release date | Region | References |
Traffic throttling for individual requests | Traffic throttling for individual requests allows you to limit the downstream speed for all requests that are sent to points of presence (POPs). This way, you can limit the overall peak bandwidth of accelerated domain names. This feature is suitable for scenarios such as game releases and software downloads. | 2023-11 | All regions | |
Self-service diagnostics tool | If you encounter issues such as page loading failures or page errors when you use Alibaba Cloud CDN, you can use the self-service diagnostics tool to diagnose the issues. The diagnostics tool provides diagnosis results. You can modify configurations of Alibaba Cloud CDN or submit a ticket based on the results. | 2023-10 | All regions | |
Cache sharing | Cache sharing is added to allow accelerated domain names (one-to-one or one-to-many) in the same Alibaba Cloud account to share resources that are cached on POPs. Cache sharing increases the resource hit ratio of the domain names, improves the acceleration performance of Alibaba Cloud CDN, and reduces origin traffic. | 2023-09 | All regions | |
| Existing features can be used with the rules engine feature to filter user requests based on specified rules. This way, you can configure custom policies in a more efficient manner. For more information, see Rules engine. | 2023-08 | All regions | |
| Existing features can be used with the rules engine feature to filter user requests based on specified rules. This way, you can configure custom policies in a more efficient manner. For more information, see Rules engine. | 2023-07 | All regions | |
Upgrade from Alibaba Cloud CDN to DCDN for a domain name | Upgrade from Alibaba Cloud CDN to Dynamic Content Delivery Network (DCDN) is supported. DCDN provides application acceleration, edge computing, and security protection capabilities. If you want to upgrade from Alibaba Cloud CDN to DCDN for your domain name, you can perform the upgrade by using the domain name upgrade tool in the Alibaba Cloud CDN console. | 2023-05 | All regions | |
Conditional origin | The conditional origin feature can be used with the rules engine feature to filter user requests based on the specified rules, such as request header, query string parameter, path, and client ip. Then, requests that meet the rules are redirected to the specified origin server. For more information, see Rules engine. You can add multiple rules so that requests can be redirected to different origin servers based on the rules. | 2023-02 | All regions | |
Rules engine | The rules engine feature is supported. You can use the graphical user interface that is provided by the rules engine to configure rules. You can configure rules to identify user requests based on the parameters they carry. This helps determine whether a configuration applies to the requests, and provides a more flexible and accurate method to manage the configurations and policies that you set in Alibaba Cloud CDN. For the first time ever, this feature is available to the public. Rules can be referenced by the conditional origin feature. For more information, see Configure a conditional origin. | 2023-02 | All regions | |
Domain name transfer across accounts | A domain name transfer tool can be used to transfer accelerated domain names across accounts. | 2023-01 | All regions | |
Specified origin host | Different origin hosts can be specified for different origin servers if your accelerated domain name has multiple origin servers. POPs use the specified origin host to access the origin server. This feature has a higher priority over the default origin host. | 2023-01 | All regions | |
Alibaba Cloud OSS private bucket access | Access to private OSS buckets in the same Alibaba Cloud account or a different Alibaba Cloud account is supported. | 2023-01 | All regions | Grant Alibaba Cloud CDN access permissions on private OSS buckets |
2022
Feature | Description | Release date | Region | References |
Origin fetch over IPv6 | After you configure Origin fetch over IPv6, requests can be forwarded to origin servers over IPv6 based on different back-to-origin policies. | 2022-11 | All regions | |
Web Frontend Performance | Web Frontend Performance is a feature launched by Alibaba Cloud CDN and Application Real-time Monitoring Service (ARMS). By introducing monitoring code to web pages, Web Frontend Performance monitors user access data. This helps you monitor your website performance, such as page loading, page stability (JS errors), and success rate of calls to external services. | 2022-09 | All regions | |
Common Name whitelist | The Common Name whitelist feature is supported. After you enable the Common Name whitelist feature, the certificate Common Name returned by the origin server and the SNI value included in an HTTPS request are verified when a POP establishes a connection with the origin server over HTTPS. | 2022-07 | All regions | |
Status code expiration (origin cache policy prioritized) | A cache rule for HTTP status codes can be configured in the Alibaba Cloud CDN console. For more information, see Create a cache rule for HTTP status codes. When the client requests the same resource again, the POP returns a status code without triggering origin fetch. This reduces loads on origin servers. If you want to follow the status code expiration rule configured on the origin server, you can use this feature. | 2022-07 | All regions | |
Refresh resources based on regular expressions | A URL that contains a regular expression can be submitted in a refresh task. Alibaba Cloud CDN refreshes all URLs that match the regular expression. This feature enables targeted refresh. | 2022-07 | All regions | |
Upgraded console | Additional features are added to the Overview page, left-side navigation pane, and Resource Plans page in the Alibaba Cloud CDN console. Console layouts are optimized. This improves user experience. | 2022-06 | All regions | None |
Integration with Terraform | Terraform is integrated with Alibaba Cloud CDN. Terraform is an open source tool that supports automatic resource orchestration. Terraform allows you to preview, configure, and manage basic cloud infrastructure and resources in an efficient and secure manner. | 2022-05 | All regions | |
Application center | Tools and value-added services, such as IP query, are provided in the application center of Alibaba Cloud CDN. This allows you to easily find and use services in the application center. | 2022-03 | All regions | |
Tag management | The tag management feature is improved to support interactive operations and enhance user experience. | 2022-02 | All regions | |
QUIC | The Quick UDP Internet Connections (QUIC) protocol is supported. If QUIC is enabled, data can be transmitted between clients and POPs over QUIC. QUIC secures data transmission and improves transmission efficiency. | 2022-01 | All regions |
2021
Feature | Description | Release date | Region | References |
Statistical analytics | The statistical analytics feature is discontinued. The operations report feature can be used to analyze data. | 2021-11 | All regions | Customize an operations report template and create a tracking task |
Domain name management | Advanced search conditions are supported. You can search for domain names by origin server and accelerated domain name. If you search for domain names by accelerated domain name, fuzzy match, exact match, prefix match, and suffix match are supported. | / | ||
Content moderation for images | Content moderation for images is discontinued. | 2021-10 | All regions | / |
Operations report | The operations report feature is supported. The operations report feature provides offline analysis data of accelerated domain names in different periods of time and help you gain data insights from the workload status. | 2021-09 | All regions | Customize an operations report template and create a tracking task |
Free SSL certificates | Application for free SSL certificates in the Alibaba Cloud CDN console is disabled. We recommend that you use Certificate Management Service to apply for SSL certificates. | 2021-08 | All regions | |
CORS | Cross-origin resource sharing (CORS) is supported. You can add custom HTTP response headers to enable CORS. | 2021-07 | All regions | |
Custom cache keys | Custom cache keys are supported. You can configure a cache key for requests that are destined for the same resource file. This helps save cache space and reduce the number of requests that are redirected to the origin server. | All regions | ||
302 redirection | 302 redirection is supported. After you configure 302 redirection on your origin server, POPs process the HTTP 302 status code that is returned by your origin server. This simplifies the processing pipeline and accelerates content delivery. | All regions | ||
Configuration guide for adding domain names | A configuration guide for adding and configuring domain names that you want to accelerate is supported. | All regions | ||
Log storage | Log storage is supported. After the log storage feature is enabled, Alibaba Cloud CDN automatically stores logs in a specified Object Storage Service (OSS) bucket to persist log data for viewing and analysis. | 2021-06 | All regions | |
Origin server weights | Origin servers can be assigned weights. Requests are redirected to the origin servers based on weighted round-robin scheduling. | 2021-04 | All regions | |
ES templates and script monitoring | EdgeScript (ES) templates are supported in the Alibaba Cloud CDN console. You can use the templates to deploy code for different scenarios without the need to make complex modifications. ES templates improve programming efficiency. Script monitoring is supported. You can monitor the status of each script and query the error codes that may appear during script execution. | 2021-03 | All regions | |
Remote authentication | Remote authentication is supported to reinforce access control. The authentication process involves the user who sends the request, POPs, and the authentication server. You can create custom authentication rules in the Alibaba Cloud CDN console. | All regions | ||
Pay-by-peak-bandwidth | The pay-by-peak-bandwidth metering method is supported. Since January 8, 2021, Alibaba Cloud CDN uses the pay-by-data-transfer metering method by default. If you want to switch to the pay-by-peak-bandwidth metering method, contact your account manager or contact us by other means. For more information, see Contact us. | 2021-01 | All regions |
2020
Feature | Description | Release date | Region | References |
Integration with Anti-DDoS | Alibaba Cloud CDN POPs are integrated with Anti-DDoS services to scrub network traffic. This way, Alibaba Cloud CDN can accelerate content delivery and mitigate malicious requests. | 2020-06 | All regions | |
Image editing | Image editing is supported. You can resize, crop, sharpen, and rotate images and convert image formats on POPs. | 2020-06 | All regions | |
Management of custom HTTP response headers | The custom response header feature is optimized. You can delete, change, and replace custom response headers. | 2020-05 | All regions | |
Rewrite of external links to resolve IPv6 performance issues | External links can be rewritten to resolve the following issues in IPv6 deployment: slow responses, content loading errors, and redirection errors. The preceding challenges are known performance issues of IPv6. If the sites that are linked to your website do not support IPv6, you cannot resolve these issues by applying the dual-stack technology or upgrading your network or applications. Alibaba Cloud CDN provides a solution by rewriting the external links on POPs and accelerating content delivery over IPv6. | 2020-05 | All regions | |
Parameter rewrite | Parameters can be rewritten. If you want to modify URL parameters in requests before they are redirected to origin servers, you can create rules to rewrite the parameters. | 2020-04 | All regions | |
URI rewrite | URI rewrite is supported. If you want to rewrite URIs in requests before they are redirected to origin servers, you can create rules to rewrite URIs. | 2020-04 | All regions | |
Origin HTTP response headers | Custom HTTP response headers are supported. If you want to rewrite HTTP headers in response URLs before they are returned to POPs, you can create rewrite rules in the Alibaba Cloud CDN console. | 2020-04 | All regions | |
Origin HTTP request headers | Custom HTTP request headers are supported. If you want to rewrite HTTP headers in request URLs before they are redirected to origin servers, you can create rewrite rules in the Alibaba Cloud CDN console. | 2020-04 | All regions | |
Rate limiting | The rate limiting feature is supported. When the response time of your website is increased due to HTTP flood attacks, the rate limiting feature can block specific requests that are sent to your website within seconds and improve the security of your website. | 2020-04 | All regions | |
EdgeRoutine (ER) | EdgeRoutine (ER) is supported. ER is a computing environment that allows you to deploy JavaScript code on all POPs at the same time. | 2020-03 | All regions |
2019
Feature | Description | Release date | Region | References |
IPv6 | IPv6 is supported. After IPv6 is enabled, IPv6 clients can access Alibaba Cloud CDN over IPv6. Alibaba Cloud CDN also carries the IPv6 information when it accesses your origin server. | 2019-10 | All regions | |
Audio and video preview | Audio and video preview is supported. A POP can return specific lengths of audio or video files to clients. | All regions | ||
Audio extraction | Audio extraction is supported. After audio extraction is enabled, POPs extract audio data from a video file and then return the audio data to clients. This reduces data usage. | 2019-09 | All regions | |
EdgeScript | EdgeScript is released. This feature allows you to specify custom Alibaba Cloud CDN and DCDN configurations by running scripts if the built-in configurations provided by Alibaba Cloud CDN or DCDN cannot meet your business requirements. | 2019-07 | All regions | |
Rewrite | The URI rewrite feature is supported. This feature allows you to configure URI rewrite rules in the Alibaba Cloud CDN console to customize request processing. | 2019-07 | All regions | |
Brotli compression | Brotli compression is supported. Brotli is a new open source compression algorithm that can improve download performance by approximately 15% to 25% compared with Gzip compression. | 2019-05 | All regions | |
User-Agent blacklists and whitelists | User-Agent blacklists and whitelists are supported. This feature enables Alibaba Cloud CDN to control access based on the User-Agent request header. You can configure a User-Agent blacklist or whitelist to control access to your resources and block malicious requests. | All regions | ||
Change the acceleration region | Switching between accelerated regions is supported. You can change the acceleration region for an accelerated domain name in the Alibaba Cloud CDN console. | 2019-04 | All regions | |
Upgraded certificate center | The certificate center of Alibaba Cloud CDN is upgraded. You can configure SSL certificates for one or more accelerated domain names at the same time. | 2019-03 | All regions | |
SNI | Server Name Indication (SNI) is supported. SNI specifies the name of the requested domain name and enables the origin server to return the correct certificate for the specified domain name. | All regions |
2018
Feature | Description | Release date | Region | References |
TLS version and HSTS management |
| 2018-11 | All regions | |
Latest Alibaba Cloud CDN API | The previous API version will no longer be maintained. We recommend that you use the latest API version. | 2018-09 | All regions | |
Upgraded Alibaba Cloud CDN console | The Alibaba Cloud CDN console is upgraded to a later version. The new version supports basic operations, such as domain name configuration, and provides resource monitoring services for real-time data analytics. You can also view your billing information and change the billing method in the upgraded Alibaba Cloud CDN console. | 2018-07 | All regions |
2017
Feature | Description | Release date | Region | References |
DCDN | DCDN is supported. DCDN is built based on Alibaba Cloud CDN and can accelerate the delivery of dynamic content or both dynamic and static content from applications and origin servers. | 2017-08 | All regions |
2016
Feature | Description | Release date | Region | References |
Subscription data transfer plans | Subscription data transfer plans are supported by Alibaba Cloud CDN. A data transfer plan takes effect immediately after the payment is complete. The amount of data transfer that exceeds the quota of the plan is billed based on the pay-as-you-go billing method. | 2016-02 | All regions |
2015
Feature | Description | Release date | Region | References |
Cache rules and priorities | Cache rules and priorities are supported. You can configure cache rules for resources of a specific file type or directory. You can specify a time-to-live (TTL) value for cached resources and specify the priority of each cache rule. | 2015-10 | All regions | |
Custom HTTP response headers | Ten types of HTTP response headers are supported by Alibaba Cloud CDN. | 2015-08 | All regions |
2014
Feature | Description | Release date | Region | References |
Official release of Alibaba Cloud CDN | Alibaba Cloud CDN is officially released. Alibaba Cloud CDN is a distributed virtual network that consists of POPs that are deployed in different regions across the world. Alibaba Cloud CDN reduces network traffic on origin servers to prevent network congestion. You can use Alibaba Cloud CDN to accelerate content delivery in different regions and scenarios. | 2014-03 | All regions |