I was in diagnostic center and I got the following problems
Problem 1: Check DNSSEC configuration? Does the site have valid DNSSEC records? Error =
no_dnssec_found - The site does not have any DNSSEC records.
Problem2: Check DS record configuration? Does the hostname have a DS record? Does this record use the Cloudflare algorithm? Error = not_found_ds_record - The hostname has no DS records.
Problem 3: Check if connecting to ‘www.domain.com’ works. Is there an A or AAAA DNS record to make connecting to ‘www.domain.com’ possible? Error=www_does_not_resolve
No, Cloudflare DNS could not connect to ‘www.domain.com’.
Problem 4: Check if redirecting unencrypted HTTP traffic works. Does the website redirect unencrypted traffic from HTTP to HTTPS?
ERROR: no_redirect_to_https No, the website doesn’t redirect HTTP traffic to HTTP.
Where to start I am new to Cloudflare, I notice you operate with commands which software you use to write those commands like dig… etc