What is the name of the domain?
不适用
What is the issue you’re encountering
DCV委派描述不符！
What steps have you taken to resolve the issue?
在DCV委派帮助中"在权威 DNS 中在 _acme-challenge.example.com 上创建 CNAME 记录，并将其指向 example.com.[user].dcv.cloudflare.com。一个这样的记录可以同时处理顶级主机名和通配符。",但实际上其不能处理通配符，SaaS也完全不支持自定义通配符主机名。当输入任意子域名时，其也不可以帮助此子域名完成证书验证！
Was the site working with SSL prior to adding it to Cloudflare?
Yes
What is the current SSL/TLS setting?
Strict (SSL-Only Origin Pull)