mendozal Thank you Luis.
Question: Did you enable proxies for MySQL and FTP?
Actually, Cloudflare recommends doing it otherwise, we expose our IP.
Also, I've just enabled Proxy for A record and www, but I'm getting this in my WordPress Health Tools:
Your site could not complete a loopback request
Loopback requests are used to run scheduled events and are also used by the built-in editors for themes and plugins to verify code stability.
The loopback request returned an unexpected HTTP status code, 403, it was not possible to determine if this will prevent features from working as expected.
I know it's not a plugin, but this occurs every time I enable full strict + proxies.
Same for this:
The REST API encountered an unexpected result
Performance
The REST API is one way that WordPress and other applications communicate with the server. For example, the block editor screen relies on the REST API to display and save your posts and pages.
When testing the REST API, an unexpected result was returned:
REST API Response: (403) Forbidden