Tencent Cloud Content Delivery Network (CDN) is a delivery acceleration service that enables nearby access for end users by delivering content to cache nodes deployed worldwide. The globally distributed network reduces network jitters and latencies, effectively improving download speed, responsiveness and overall user experience.
Content Delivery Network
A fast, stable, intelligent, and secure content delivery acceleration service
Overview
Benefits
Massive Acceleration Resources
Tencent Cloud CDN has massive acceleration resources distributed in 70+ countries and regions with a combined bandwidth of over 160 Tbps. With the support of China Mobile, China Unicom, China Telecom and a dozen of small and medium ISPs, it provides stable and fast acceleration services to improve your service availability.
Intelligent Scheduling
Tencent Cloud's self-designed GSLB scheduling system, paired with a unique network-wide real-time monitoring system, accurately routes user requests to optimal access nodes, ensuring high access quality.
Global Acceleration
Tencent Cloud boasts 2,000+ cache nodes across China deployed with China Mobile, China Unicom, China Telecom and more than a dozen small and medium-sized ISPs with a total of 160+ Tbps bandwidth, and 800+ nodes in over 70 countries and regions outside Mainland China, effectively solve issues with high cross-regional access latency.
Monitoring and Alarming
CDN provides comprehensive real-time monitoring services for access/origin-pull traffic, bandwidth, requests, hit rate, and specific status codes at the minute level. This gives you a real-time overview of your CDN service status and helps you monitor origin servers status. Alarm policies can be configured as needed in Cloud Monitor, enabling you to stay up to date with business fluctuations.
Data Analysis
CDN enables you to view various reports such as active IP statistics, user access region distribution, and ISP distribution via log streaming. In addition, access logs can be downloaded for customized analysis.
Ease of Use
After you activate CDN and connect a domain name, you simply need to add a corresponding CNAME record at your domain name service provider to enable the acceleration. No additional changes to your business is required. The CDN Console offers dozens of features such as access control policy configuration, node cache expiration time adjustment, HTTP request optimization, and HTTPS certificate configuration.
Features
Access Control
You can set an access limit and create blocklists/allowlists for referer, IP, and UA to block specific requests. A wide selection of timestamp-based hotlink protection rules is available to prevent unauthorized use of your resources and avoid potential losses.
Cache Configuration
You can set the cache expiration time of your contents on different CDN nodes according to file type, directory, and path to effectively improve the node hit rate and reduce the origin-pull bandwidth consumption.
HTTPS Acceleration
Tencent Cloud provides free SSL certificates. You can apply for a free certificate with us or purchase a preferred one from Symantec or GeoTrust, and easily deploy it to CDN for HTTPS access. After deployment, you can use features such as force HTTPS redirection (301/302 redirection) and HTTP 2.0.
Monitoring and Alarming
Comprehensive real-time monitoring is available for counting statistics of traffic, bandwidth, requests, hit rate, origin-pull failure rate, and specific status codes at the minute level, helping you understand the CDN service status and monitor origin servers instantly. Alarm policies can be configured as needed in the Cloud Monitor Console, enabling you to stay up to date with business fluctuations.
Purge and Prefetch
After the contents are updated on or deleted from the origin server, URL/directory purge tasks can be submitted in the console or through open APIs to delete the cached resources across the entire network and ensure that users access the latest resources. URL prefetch tasks can also be submitted for the cache nodes to actively pull the specified resources from the origin server and cache them for improved access speed.
Log Download
Access logs for all domain names in the past 30 days are provided by default. Logs contain 15 fields, namely request time, client IP, domain name, access path, number of bytes, client location, client ISP, status code, Referer, response time, User-Agent, Range, HTTP Method, HTTP protocol identification, and cache hit/miss. The logs can be downloaded for analysis.
Scenarios
Static Content Acceleration
Download Acceleration
Audio and Video on Demand Acceleration
Tencent's proprietary GSLB scheduling system precisely routes user requests to the optimal cache node with high-QPS clusters, allowing for fast response to massive volumes of requests made to static pages and images, reducing access latency and improving user experience.
Tencent's proprietary GSLB scheduling system precisely routes user requests to the optimal cache node, ensuring a fast and stable download experience by pushing the download resources to all nodes in advance.
CDN's powerful global acceleration capabilities help deliver video content on websites to all end users with speed, accuracy and reliability. Paired with Cloud Object Storage (COS) for storing massive amounts of image and video files, static CDN acceleration can effectively shorten content loading times and improve user experience.
Pricing
Tencent Cloud CDN offers two pay-as-you-go daily billing options, bill-by-bandwidth and bill-by-traffic. You can select the billing mode that best suits your business needs. Please see the billing documentation for details.