Cloudflare can ‘t get resource from my object storage service

I am using Tencent cloud cos hosing my image resources for my website, which is similar to azure blob.
It has an anti-hotlink setting to protect the resources inside the cos, if you need to access it, you must put your referer domain (or ip address) in the whitelist.
I always
I tried to find the referer domain which is Cloudflare using to caching the resources from my cos server, but I can’t find anything about it.
Please help, thanks.

I already tried to put my site’s domain and ip in the whitelist, but noting works.

The problem is solved.
In tencent cloud’s cos whitelist setting, if your domain name has no www at the beginning, you need to put *example.com in the whitelist instead of *.example.com.