ERR_NAME_NOT_RESOLVED — Causes and How to Fix It (Step-by-Step)

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ERR_NAME_NOT_RESOLVED appears when your browser cannot resolve a domain name into an IP address. The request fails at the DNS level, so the website cannot be found.

This is usually a DNS or network issue. In most cases, the problem is local — not on the website itself.

Quick Fix

  • Check the URL for typos.
  • Restart your router and device.
  • Flush DNS cache.
  • Switch to Google DNS (8.8.8.8 / 8.8.4.4).
  • Disable VPN or proxy.
  • Clear browser cache.

These steps fix most ERR_NAME_NOT_RESOLVED errors within minutes.

What ERR_NAME_NOT_RESOLVED Actually Means

Every website has an IP address. DNS (Domain Name System) translates human-readable domain names into those IP addresses.

When you open a website, your browser asks a DNS server:

“What IP address belongs to this domain?”

If the DNS server cannot answer, the browser shows:

ERR_NAME_NOT_RESOLVED

This means the domain could not be resolved. The browser has no way to locate the server.

The failure can occur at different levels:

  • The domain does not exist
  • DNS records are missing
  • Your device cannot reach the DNS server

Why ERR_NAME_NOT_RESOLVED Happens

Incorrect Domain Name

A simple typo in the URL is enough to trigger this error.

DNS Server Not Responding

The DNS server may be offline, overloaded, or blocked.

Missing DNS Records

If the domain has no A record or nameservers, it cannot resolve.

Local DNS Cache Issues

Your system may store outdated or incorrect DNS entries.

VPN or Proxy Interference

Some VPN services use unstable DNS infrastructure.

Firewall or Antivirus Blocking DNS

Security software can block DNS queries.

Domain Expired or Not Registered

If the domain is inactive, DNS resolution will fail completely.

Step-by-Step Fixes

1. Check the Domain Name

Confirm that the URL is typed correctly.

Even one wrong character causes DNS failure.

2. Restart Your Router and Device

Turn off your router for 30 seconds.

Restart your computer and reconnect.

This clears temporary network issues.

3. Flush DNS Cache

Remove outdated DNS records stored on your device.

Windows:

ipconfig /flushdns

Mac:

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

4. Change DNS Servers

Switch to reliable DNS providers:

  • Google DNS: 8.8.8.8 / 8.8.4.4
  • Cloudflare DNS: 1.1.1.1 / 1.0.0.1

This often resolves DNS issues instantly.

5. Disable VPN or Proxy

Turn off VPN or proxy services and test again.

They can interfere with DNS resolution.

6. Check Hosts File

The hosts file can override DNS.

Remove incorrect entries if necessary.

7. Reset Network Settings

Windows:

netsh int ip reset
netsh winsock reset

Restart your system after running these commands.

Advanced Troubleshooting

Use nslookup

nslookup example.com

If no IP address is returned, DNS is failing.

Test Another Network

Switch to mobile data or another Wi-Fi network.

If the site works, the issue is your network.

Check Domain DNS Records

If you own the site:

  • Verify A records
  • Check nameservers

Check Domain Status

Make sure the domain is active and not expired.

Does ERR_NAME_NOT_RESOLVED Affect SEO?

Yes.

If your domain cannot resolve, search engines cannot access your website.

This leads to:

  • Loss of indexing
  • Traffic drop
  • Ranking decline

Fix DNS issues immediately to avoid long-term damage.

How to Prevent This Error

  • Use reliable DNS providers
  • Monitor domain expiration
  • Verify DNS records after changes
  • Avoid unstable VPN services
  • Keep network settings clean

When to Contact Support

Contact your provider if:

  • The domain does not resolve anywhere
  • DNS records are missing
  • Changes do not propagate

Your registrar or hosting provider can check DNS configuration.

Related DNS Errors

If you’re dealing with DNS issues, these guides can help you fix similar problems:

FAQ

What does ERR_NAME_NOT_RESOLVED mean?

It means the domain cannot be resolved to an IP address via DNS.

Is this a website problem?

Usually no. It is often a DNS or local network issue.

Can changing DNS fix it?

Yes. Switching to Google or Cloudflare DNS often resolves it.

Can VPN cause this error?

Yes. VPN services can interfere with DNS resolution.

How fast can it be fixed?

Most cases are resolved within a few minutes.

Summary

ERR_NAME_NOT_RESOLVED occurs when a domain name cannot be translated into an IP address.

The most common causes include DNS issues, network problems, or incorrect configuration. Restarting your network, flushing DNS cache, and switching DNS servers usually resolves the issue quickly.

Main Error Hub

For a full list of DNS, SSL, server, and WordPress issues, see the complete website error guide.

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