Browser and DNS errors
What a browser or DNS error means, what you can try as a visitor, and what to check if you run the site. For the numbers a server sends, see the HTTP status codes.
- DNS_PROBE_FINISHED_NXDOMAINDNS_PROBE_FINISHED_NXDOMAIN means Chrome asked a DNS server for the IP address of the site and the server answered NXDOMAIN: no such domain.
- ERR_NAME_NOT_RESOLVEDERR_NAME_NOT_RESOLVED is the error code Chrome gives when it cannot turn a host name into an IP address.
- DNS server not respondingThe Windows network troubleshooter says “Your computer appears to be correctly configured, but the device or resource (DNS server) is not responding” when your computer sent a DNS question and got no answer.
- ERR_CONNECTION_REFUSEDERR_CONNECTION_REFUSED means your browser reached the server’s address, and the server answered that it will not accept the connection on that port.
- ERR_CONNECTION_RESETERR_CONNECTION_RESET means the connection to the site was set up, and then something on the path broke it with a reset while the page loaded.
- ERR_CONNECTION_CLOSEDERR_CONNECTION_CLOSED means the server closed the connection before it sent a page.
- ERR_SSL_PROTOCOL_ERRORERR_SSL_PROTOCOL_ERROR means the browser started a secure (TLS) connection and the server’s answer was not valid.
- NET::ERR_CERT_AUTHORITY_INVALID“Your connection is not private” is the warning Chrome shows when it cannot trust the certificate of a site.