To use GTM, you need to resolve the primary domain name accessed to the domain name of the GTM instance in CNAME mode. Then, you can realize disaster recovery and smart access for the application service.
- If you use Alibaba Cloud DNS, you just need to finish CNAME configuration on the Alibaba Cloud DNS console.
- Log on to the Alibaba Cloud DNS console and go to the Domain Name Resolution List page.
- Click a domain name to go to the Resolution Configuration page.
- Add a CNAME record for the application service domain name to access the GTM instance.