Trying to setup Cloudflare to work with my domain and EC2 instance on Amazon, but getting an error 521 in return.
I’ve replaced the DNS in my domain registrar as well as on Amazon’s Route53 with Cloudflare’s, and set the instance’s Elastic IP on Cloudflare’s config.
The server is okay, accessing through IP works normally.
What am I missing?
Here’s the Ray ID if it helps: 4eca79de6a4567f5