If you type your website’s address into a browser and see a “Domain Not Found” message or encounter DNS (Domain Name System) errors, it can be frustrating — especially if your site is live and you depend on it for business or communication.
Don’t panic. In most cases, these issues can be fixed quickly once you identify the cause. In this guide, we’ll explain what these errors mean, why they happen, and how you can resolve them.
???? What Does “Domain Not Found” Mean?
When you enter a domain name (like `example.com`), your browser needs to find the server where your website is hosted. The DNS works like the internet’s phonebook, translating your domain name into the server’s IP address.
If there’s a problem in this process, you’ll see messages like:
- “Domain Not Found”
- “Server IP Address Could Not Be Found”
- “DNS\_PROBE\_FINISHED\_NXDOMAIN”
⚠️ Common Causes of Domain Not Found or DNS Errors
1. DNS Propagation Delay
When you register a new domain or update DNS records, it can take up to 48 hours for changes to propagate worldwide.
2. Incorrect DNS Records
If your domain’s A record, CNAME, or nameservers are incorrect, your site won’t be reachable.
3. Expired Domain Name
If your domain registration has expired, visitors won’t be able to reach your website.
4. Nameserver Misconfiguration
If you’re using custom nameservers but they’re not set up properly, DNS resolution will fail.
5. Hosting Server Issues
Even if DNS is correct, a server outage can cause your domain to appear offline.
How to Fix Domain Not Found or DNS Errors
1️⃣ Check Your Domain’s Registration Status
- Use a WHOIS lookup tool to confirm your domain is active and not expired.
- Renew your domain if needed.
2️⃣ Verify Your Nameserver Settings
- Log in to your domain registrar’s control panel.
- Ensure your nameservers point to your hosting provider’s correct details.
Example:
```
ns1.sternhost.com
ns2.sternhost.com
```
3️⃣ Review Your DNS Records
- In your hosting cPanel or DNS manager, confirm your A record points to your hosting server’s IP.
- Check CNAME and MX records if using email services.
4️⃣ Allow Time for DNS Propagation
- After making changes, wait up to 48 hours for global propagation.
- Use tools like WhatsMyDNS.net to track updates.
5️⃣ Clear Your Local DNS Cache
- Windows: Open Command Prompt and type:
```
ipconfig /flushdns
```
- Mac: Use Terminal:
```
sudo killall -HUP mDNSResponder
```
6️⃣ Contact Your Hosting Provider
If everything seems correct but your site is still down, your hosting provider may need to investigate server-side issues.
???? Pro Tips to Prevent Future DNS Issues
- Keep your domain registration and hosting active.
- Use a reliable DNS provider with global coverage.
- Document your DNS settings before making changes.
- Enable DNSSEC for better domain security.
✅ Final Thoughts
A “Domain Not Found” or DNS error is usually caused by misconfigured records, expired domains, or propagation delays. By systematically checking each possible cause, you can usually restore your website in minutes or hours.
If you’re a Sternhost customer, our support team can help you diagnose and fix DNS issues quickly, ensuring your website stays online and accessible.
