Error 521,Ray ID: 4e45e5f03ea513a5 • 2019-06-09 20:36:31 UTC Web server is down

[sdayman]

More than likely, your server is blocking Cloudflare. Here’s more info:

Community Tip - Fixing Error 521: Web server is down

Error Try the suggestions in this Community Tip to help you fix Error 521: Web server is down. Background A 521 error happens when we are unable to make a TCP connection to your origin server. Specifically, Cloudflare tried to connect to your origin server on port 80 or 443, but received a connection refused error. This is often caused by security or firewall software and happens if the origin server has directly refused Cloudflare’s proxy request. [Banner in tip catalog] Quick Fix Ideas …