all subdomain DNS_PROBE_FINISHED_NXDOMAIN code example
Example: DNS_PROBE_FINISHED_NXDOMAIN
Best Fixes :
1. Change Your Domain's DNS
2. Change Your Hosting's DNS
3. Clear Your Browsing Cache
4. Flush Your PC DNS Cahce [ ipconfig /flushdns ]
5. Renew Your PC IP [ ipconfig /renew ]