Here will show how you see which Cloudflare CDN server being use.
For my site as an example, https://www.ookangzheng.com/cdn-cgi/trace you will get something like result below.
fl=80f54 h=www.ookangzheng.com ip=18.104.22.168 ( your IP) ts=1552544757.531 visit_scheme=https uag=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36 colo=TPE (you are connected to Taipei Server) http=h2 loc=US ( my server location) tls=TLSv1.3 sni=plaintext
Here are some useful site to monitor Cloudflare CDN.
- https://www.cloudflare.com/network/ (Cloudflare CDN servers)
- https://www.cloudflarestatus.com/ (Check All Cloudflare CDN Status)