https://proxy-fallback.fivemanage.com/. This is an A record to a IP where the page is running on a caddy webserver.customers to proxy-fallback.fivemanage.com . whitelist.error-interactive.com that is a CNAME record to customers.fivemanage.com.whitelist.fivemanage.com, its just a 525 handshake error. error-interactive.com domain. Could it be related to Caddy? (I'm open to change to anything else if need be).