DNS propagation is the time it takes for DNS changes to spread across the internet. It can take up to 48 hours.

How to Check DNS Propagation:

1. Use Online Tools:

   • Websites like WhatsMyDNS or DNS Checker let you check DNS status globally.

2. Use Command Line (Advanced):

   • nslookup (Windows, macOS, Linux):

     nslookup yourdomain.com

   • dig (macOS, Linux):

     dig yourdomain.com

3. Monitor Over Time:
   • Check periodically to see when the update takes effect globally.

Troubleshooting DNS Records:

1. Flush DNS Cache:

   • Windows:

     ipconfig /flushdns

   • macOS:

     sudo killall -HUP mDNSResponder

2. Check DNS Records:

   • Use nslookup or dig to confirm DNS records (A, MX, CNAME, etc.) are correct.

3. Wait for Propagation:

   • DNS updates may take up to 48 hours. Be patient if changes aren't immediate.
4. Clear Browser Cache:
   • Your browser might show old data. Clear it to see the latest DNS changes.

Conclusion:

DNS propagation can take time. Use online tools, flush your DNS cache, and check your records to troubleshoot.

If issues persist, wait for changes to fully spread across the internet.