what is this error dns_probe_finished_nxdomain code example

Example 1: dns_probe_finished_nxdomain linux ubuntu

sudo vim /etc/dhcp/dhclient.conf

# put on last line
supersede domain-name-servers 8.8.8.8;

# restart service
sudo service network-manager restart

Example 2: 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 ]