Getting different types of errors when loading my website

Hi, I need some help getting my website online.

Right now I am experiencing ERR_CONNECTION_CLOSED errors whenever I try to visit the website.

Before that, I had 404 and 525 errors, and Too Many Redirects Error as well, but now this is not the case.

When I tested my domain using Cloudflare Diagnostic Center, I had multiple errors there as well, such as:

  • no_dnssec_found
  • not_found_ds_record
  • Your request failed with a response status of 400 or above.
  • The website doesn’t redirect HTTP traffic to HTTP.
  • Clouflare encountered an unknown error.
  • The site’s web server responded with a status code that isn’t 200 (OK).

I tried these to solve the problem.

  1. Changing SSL/TLS encryption modes (Full/Strict → Flexible)
    This used to change the error message from 525 Error to Too Many Redirect Errors, but it does nothing when I’m now getting the Connection Closed Error.
  2. Deleting and getting new certificates from Edge Certificates, Client Certificates, and Origin Server.
  3. Adding page rules.
  4. Activating DNSSEC.

I am using Google Sites to host my website, and Google Sites seem to be working fine
(Google recognizes the domain as mine, and I can visit the original website)

Right now I am using Chrome Incognito mode to check for errors since cache on my browser seems to ‘delay the errors’ in some way.
However occasionally I use Microsoft Edge and just normal Chrome just to make sure, and they usually show the same errors.

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