This topic provides answers to some frequently asked questions (FAQ) about acceleration areas of Global Accelerator (GA).

After I configure a CNAME record, why does it fail to take effect?

You can modify Domain Name System (DNS) resolution settings to map a domain name to the CNAME of a Global Accelerator (GA) instance. When a client accesses the backend service by using the domain name, GA resolves the domain name to an accelerated IP address based on the region of the client.

If the CNAME records that you configure for a GA instance fail to map domain names, you can check the acceleration regions of the GA instance:
  • If all the acceleration regions are in the Chinese mainland, the CNAME records take effect only in the Chinese mainland.
  • If all the acceleration regions are outside the Chinese mainland excluding China (Hong Kong), the CNAME records take effect only outside the Chinese mainland.
  • If the acceleration regions include regions in and outside the Chinese mainland, the CNAME records take effect worldwide. In this case, you must configure a cross-border acceleration bandwidth plan.
  • If the acceleration regions include China (Hong Kong), the CNAME records take effect worldwide.