How do I troubleshoot Cloudflare caching issues with a subdomain managed by Nginx Proxy Manager?

First, purge the Cloudflare cache for your subdomain. Then, check Nginx Proxy Manager's cache settings. Ensure the 'Cache Assets' option is enabled if you want Nginx Proxy Manager to cache content. Verify Cloudflare's Page Rules aren't interfering with caching. Use Cloudflare's development tools to inspect the response headers and confirm caching behavior.