By Valerie YJ Lee, Solutions Architect
The purpose of this study is to evaluate the performance factors of Alibaba Cloud's CDN service by region by measuring object and web page load time. We will be running two types of tests, as described below.
This test is that measures the NETWORK PERFORMANCE by periodically loading certain objects from distributed CDN nodes.
|Test URL example||http://www.abc.com/img/product/test.png (QT011_100K)|
|Test nodes||KR (Seoul), CN (Hong Kong), CN (Taipei), JP (Tokyo), SG (Singapore), CN (Beijing, Shanghai), VN (Hanoi), ID (Jakarta), MY(Kuala Lumpur), TH (Bangkok), US (New York, San Jose), AU (Sydney), CA (Toronto) – 15|
The test was performed twice for comparing the improvements before and after CDN tuning.
This test is similar with object load test, but this measures the whole page response time in various locations. Therefore, this evaluates the UX LEVEL PERFORMANCE rather than network environment.
|Test URL example 1||
|Test nodes||KR (Seoul), CN (Hong Kong), CN (Taipei), JP (Tokyo), SG (Singapore), CN (Beijing, Shanghai), VN (Hanoi), ID (Jakarta), MY(Kuala Lumpur), TH (Bangkok), US (New York, San Jose), AU (Sydney), CA (Toronto), Dubai, GM (Frankfurt), PH (Manila) - 18|
|Test URL example 2||http://www.xyz.com/index.html|
|Test nodes||CN (Hong Kong), JP (Tokyo), CN (Beijing, Shanghai), CN (Taipei)|
Before reading, make sure that you remember these factors that indicate good performance
1) Response time in CN(Hong Kong), JP, CN(Taipei) and SG are very good. In US San Jose, Shanghai and Bangkok, performance is good (Shanghai has no CDN)
2) Beijing supplement needed - After ICP completion
3) ID and MY need to be supplemented
POC vs. Production
The below table shows performance in POC environment (without CDN vs. Alibaba CDN vs. third-party vendor CDN)
These charts and table show performance in production environment.
In production environment, the response time decreased from 26 seconds to 12 seconds (Test URL 1) and from 12 seconds to 10 seconds with Alibaba CDN.
Detailed performance data in production environment
The red dots mean "bytes limit exceeds" error of own test tool.
Summary of Results
Comparison of Alibaba Cloud CDN with Third-Party Vendor
Summary of Results
Alibaba Cloud CDN provides excellent network performance and UX quality, and has a local and temporal distribution of response time. In particular, it can be seen that the response time in China is greatly improved with our CDN product. We are constantly increasing the number of nodes in various countries around the world, so our customers can expect better response times globally.
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