Issues with CloudFlare SSL and Let’s Encrypt certificate

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This older post of mine may also interest you.

Error: Let’s Encrypt finalize bad status 403 - mail domain

I moved away from Page Rules for ACME challenge configs in Cloudflare. I use the Configuration and Cache Rules now. I don’t make any specific WAF changes, only the following: Configuration Rules: Name: ACME Challenge Expression: (starts_with(http.request.uri.path, "/.well-known/acme-challenge/")) Automatic HTTPS Rewrites: Off Browser Integrity Check: Off Opportunistic Encryption: Off Security Level Essentially Off SSL: Off Cache Rules: Name: ACME Challenge Expression: (starts_with(htt…