523 Error with proxy

when i try to contact my site i have the 523 error. I read a lot of article in the community but i doesn’t resolved the problem.

i can explain my configuration because i hope someone can give me a tip.

I have a web server with a site that i would like to expose on internet. Before there’s a server proxy with caddy configured to use cloudflare dns. In my router there is a port forwarding rules for http and https to the proxy.
I have a dynamic IP and i use DDNS service, no-ip.com.
If i browse using the name it’s all ok. if i use cloudflare there is the error.

That’s all works fine until 10 days ago
Tnks a lot

I’d start with #5 in this #CommunityTip:

1 Like

this is the result of trace:

su un massimo di 30 punti di passaggio:

1 13 ms 16 ms 22 ms pppoe-server.net.ngi.it []
2 16 ms 21 ms 20 ms
3 * * * Richiesta scaduta.
4 16 ms 24 ms 20 ms
5 * 18 ms 17 ms cloudflare.mix-it.net []
6 15 ms 31 ms 16 ms

Traccia completata.

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