gar.app
I want to point my gar.app domain to my main server (e.g. garapp.google.com) so that I dont need to run a dedicated server for that domain alone. All domain set to Full (Strict) with SSL Certificate from Cloudflare. Not a single answer I could find to resolve this issue..
DNS records
as I cant edit the main post, I will point out that I already add CNAME to the main server’s domain (by leveraging CNAME Flattening)
A 525 error is typically caused by a configuration issue in the origin web server when its SSL certificate is not properly set up. Review the suggestions in this Community Tip for advice & insight.
After debugging for 2 days straight, your guide kinda help me. eventually I found the issue is not from the SSL, cause its issued by Cloudflare itself. I’m using Caddy in my webserver, and only set my main domain in the config. I need to add :443 wildcard for Caddy to auto generate SSL between any domain that pointing to the main server, by using TLS on_demand from Caddy, I finally can access any domain that pointing to the main server using CNAME
would this topic be available for everyone? maybe it will help someone that suffers from the same issue. thanks once again 
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