What Is DNS_PROBE_FINISHED_NXDOMAIN?
DNS_PROBE_FINISHED_NXDOMAIN error appears when the domain name system cannot resolve a website's URL into an IP address, making the web browser unable to reach it. The NXDOMAIN in the error code implies that t̳h̳e̳ ̳d̳o̳m̳a̳i̳n̳ ̳i̳s̳ ̳n̳o̳n̳-̳e̳x̳i̳s̳t̳e̳n̳t̳.