If your website isn’t loading or your emails aren’t working, your nameservers (NS) might be misconfigured. Nameservers are responsible for directing traffic to the correct web and mail servers. A small mistake in setup can result in website downtime, email failures, and security vulnerabilities.
Let’s go step by step to confirm if your NS records are correct and how to fix any issues.
Common Issues Caused by Incorrect Nameservers
Issue | Cause | Impact |
Website not loading | NS records missing or incorrect | Visitors can't access your website |
Email delivery failures | NS pointing to wrong mail server | Emails may bounce or not be received |
Slow website performance | NS misconfigured, causing delays | Poor user experience and potential SEO penalties |
Security risks | Unauthorized changes to NS records | Possible phishing or website hijacking |
How to Check Your Nameservers
1. Use an Online NS Lookup Tool
Online tools provide an easy way to verify your NS records. Simply enter your domain, and the tool will display the configured nameservers.
Popular NS Lookup Tools:
YourDMARC NS Lookup
MXToolbox
Google Admin Toolbox
2. Check NS Records via Command Line
For a more technical approach, you can check NS records directly using command-line tools:
For Windows (Command Prompt):
nslookup -type=NS yourdomain.com
For Mac/Linux (Terminal):
dig NS yourdomain.com
These commands will return the current NS records for your domain.
What to Look for in Your NS Records
Correct Nameservers: Ensure they match the ones provided by your hosting provider.
Consistent Records: All nameservers should return the same DNS information.
Proper Delegation: If you recently changed nameservers, check if the new ones are properly updated across the internet.
Response Time: Nameservers should respond quickly to avoid delays in website and email access.
How to Fix Nameserver Issues
Scenario 1: Nameservers Are Missing or Incorrect
Solution:
Log into your domain registrar (e.g., GoDaddy, Namecheap, Cloudflare).
Locate the DNS settings.
Update or add the correct nameservers.
Save changes and allow time for DNS propagation (can take up to 48 hours).
Scenario 2: Nameservers Are Not Propagating
Solution:
Flush your local DNS cache using the command:
Windows:
ipconfig /flushdnsMac/Linux:
sudo systemd-resolve --flush-caches
Check propagation status using a global DNS checker tool.
If the issue persists, contact your domain registrar.
Scenario 3: Website Loads Slowly Due to NS Issues
Solution:
Ensure your nameservers are geographically distributed for better performance.
Use a reputable DNS provider (e.g., Cloudflare, Google DNS, AWS Route 53).
Enable DNSSEC for additional security.
FAQs
Q1: How often should I check my nameservers?
A: It’s good practice to check them anytime you make domain changes or experience website/email issues.
Q2: Can I use multiple nameservers?
A: Yes, and it’s recommended! Having multiple nameservers ensures redundancy in case one server fails.
Q3: How long do NS changes take to propagate?
A: DNS changes typically take anywhere from a few minutes to 48 hours to update worldwide.
Final Thoughts
Incorrect nameserver settings can cause serious website and email issues. By regularly verifying your NS records and fixing any misconfigurations, you can ensure smooth operation, better performance, and increased security. If you’re facing persistent DNS problems, YourDMARC’s NS Lookup Tool can help diagnose and resolve issues efficiently.
🛠 Stay proactive—check your nameservers today!