1. Enter Tencent Cloud—DNS resolution
Quick access page: https://console.cloud.tencent.com/cns
Select: Parse

2. Click: Record

4. After filling in the analysis information, click: OK
The specific added content shall be subject to the information of sslsky order.
The following reference graph record type: came

CA will check the record regularly. Once the record is added, it will automatically be verified when it takes effect.
You can check whether the resolution is effective by : http://dnschecker.org/#CNAME/
For example, the following figure:
