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[public-dns-discuss] Re: Google public DNS fails to resolve our domain NS, other DNS servers are fine.



http://dnsviz.net/d/argt-kw.com/dnssec/ indicates that there are problems with the NS configuration at the .COM TLD (specifically, it is not possible to resolve your nameserver addresses, since the addresses for the configured name servers for qurani.net are not responsive). Cloudflare is probably coasting along with stale data, but will eventually fail if you do not address the problem.

https://dns.google.com/query?name=ns1.qurani.net shows:

  "Comment": "Name server failure [198.251.72.233, 198.251.66.242]."

This may indicate that Google Public DNS has marked these name servers as dead due to lack of response over a long period, in which case it will take a while to start sending them queries once they are operational.

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