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How To Troubleshoot Basic DNS Issues

This tutorial is operating under the assumption that you are using SSH. Details for how to perform similar steps in a browser will be added later.

Step 1. Check the official nameservers for the domain with:


Step 2. Check that the DNS records are @ the official nameservers:

          dig +short @[nameserver] type
          ex.  dig +short 

Step 3. Verify when there may have been a recent change to this domain.

Step 4. Check on DNS propagation to see if this appears to be the issue:


          **Free Proxy servers**

          **Sites to check website**

Other Very Helpful Tools:

dig +short @nameserver domain type
host -t mx
host ip_address → reverse DNS whois

Related Articles

What Is DNS
How Does DNS Work
How To Configure DNS
How To Manage DNS
How To Make DNS Changes To A - MX - CNAME Records And More

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