Subdomains not loading with www

my subdomains not loading with “www”, and I get the following error:

Secure Connection Failed

An error occurred during a connection to PR_END_OF_FILE_ERROR

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.
  1. I don’t see a DNS record for that www.
  2. Default SSL here won’t cover a sub-subdomian.

Hi sdayman,
Thanks for the guide.
Can you please tell me how can i set DNS record for www?

You probably don’t want to do that unless you:

  1. Don’t want www for that subdomain to be protected by Cloudflare, or
  2. You want to pay $10/month for the custom SSL certificate.

If with to pursue this, here’s a DNS tutorial:

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