How to Fix DNS_PROBE_FINISHED_NXDOMAIN
DNS_PROBE_FINISHED_NXDOMAIN means your browser couldn’t resolve the requested domain name to an IP address. This guide explains the most common causes and provides step-by-step solutions for both website visitors and domain owners.
Quick Summary
- Error: DNS_PROBE_FINISHED_NXDOMAIN
- Category: DNS Resolution
- Difficulty: Easy – Intermediate
- Estimated Fix Time: 5–20 minutes
What Does DNS_PROBE_FINISHED_NXDOMAIN Mean?
This error indicates that your browser asked a DNS resolver to translate a domain name into an IP address, but the lookup failed because the requested domain could not be found.
In DNS terminology, NXDOMAIN stands for Non-Existent Domain.
Common Causes
- Incorrect or expired domain name
- Missing A or CNAME record
- Incorrect nameserver configuration
- DNS propagation after recent changes
- Local DNS cache problems
- Router or ISP DNS resolver issues
- VPN, firewall, or antivirus interference
Step 1 — Check for Typing Mistakes
Verify that the domain name has been spelled correctly.
Step 2 — Verify DNS Records
If you own the domain, verify that its DNS records are configured correctly. Missing or incorrect records are one of the most common causes of DNS_PROBE_FINISHED_NXDOMAIN.
Use the DNS & WHOIS Lookup tool to check:
- A and AAAA records
- CNAME records
- NS (Nameserver) records
- WHOIS information and domain status
If no DNS records are returned or the domain is not registered, the browser will be unable to resolve the hostname.
Step 3 — Flush Your Local DNS Cache
Your computer stores DNS information locally to speed up future requests. If cached information is outdated, you may continue seeing the error even after the DNS records have been corrected.
If you haven’t published your own guide yet, follow this tutorial from Namecheap Knowledgebase .
How to Verify the Fix
- Refresh the website.
- Test the domain from another device.
- Use a DNS lookup tool.
- Confirm that DNS records resolve correctly.