DNS Errors

Overview

DNS errors occur when a domain name cannot be resolved into the IP address required to reach its hosting server. The Domain Name System acts as the internet’s lookup system, translating human-readable domain names into machine-readable addresses. When DNS records are misconfigured or unavailable, browsers cannot determine where requests should be sent.

Common Causes

missing or incorrect A records pointing to the website server
incorrect CNAME records for subdomains such as www
domain nameservers pointing to a DNS provider that does not host the zone
outdated DNS records remaining after a hosting migration
DNSSEC configuration errors preventing validation

How the Problem Appears

browsers displaying DNS_PROBE_FINISHED_NXDOMAIN errors
the domain resolving to the wrong website or server
the domain loading intermittently depending on the DNS resolver
services such as email or subdomains failing to connect

How It Is Diagnosed

querying DNS records using tools such as dig or nslookup
checking authoritative nameservers for the domain
reviewing DNS zone records inside the DNS provider dashboard
comparing DNS responses across multiple global resolvers
verifying DNS propagation after recent record changes

Typical Fix

update incorrect A or CNAME records to point to the correct server
ensure domain nameservers reference the correct DNS provider
remove outdated records left from previous hosting environments
correct DNSSEC configuration if validation errors occur
allow sufficient time for DNS propagation after updates

Technical Website Support

If DNS errors prevent your domain from resolving correctly, technical troubleshooting may be required to identify and correct misconfigured DNS records.