The site stops working when connecting a third-party certificate

Hey. After installing the “let me encrypt” certificate on the site, the site stops working, automatically redirects to port 80, although I installed 443, but it still redirects to 80.

P.S. SSL cloudflare naturally turned off

I still had the idea that you can not screw a third-party certificate on a free tariff, maybe this is so?

If you installed a Let’s Encrypt certificate on your server, that Cloudflare SSL/TLS setting should be Full (Strict).

In this case, I only need on the side “Let’s Encrypt”, Full (strict) not needed.

If you’re in DNS-Only mode, then that would be fine. Otherwise, please inspect the diagram and observe where the :lock: icons show up in the connection for the different SSL/TLS modes.