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# 二级子域名托管
如果你的域名是免费的二级域名（比如：sub.handsfree.work），托管在CF或者阿里云上
在使用DNS方式校验时需要设置子域名托管
[阿里云子域名托管说明](https://help.aliyun.com/zh/dns/pubz-subdomain-management)
