Cache Level（全部缓存，Cache Everything）

创建缓存规则以调整任何包含 example.com 的主机名的缓存级别：

When incoming requests match（当传入请求匹配时）: Custom filter expression
- Using the Expression Builder:
  Hostname contains "example.com"
- Using the Expression Editor:
  (http.host contains "example.com")
Then（然后）:
- Cache eligibility: Eligible for cache