Whether you just switched providers or added a secondary DNS host and want to verify domain queries are being answered by the correct nameservers, you need to troubleshoot a configuration, or you’re just bored and want to know who’s responsible for the DNS of your favorite website, you can perform a quick NSlookup command right from your computer.
An NSLookup checks the Name Server (NS) records for a specified domain. These DNS records are mandatory for any DNS configuration as they contain vital information that tells top level domain (TLD) servers which nameserver is authoritative for a domain.
To find NS information for a specific domain, you can use the following NSLookup command:
Windows Command Prompt (NS Lookup)
Open Windows Command Prompt and type the first command at the prompt, press enter, type the second command at the next prompt, then hit enter again, and the nameservers will be displayed:
nslookup
set q=ns
google.com
Mac Terminal (NS Lookup)
If you’re on a mac, all you need to do is open Terminal and type the following command line at the prompt:
nslookup ns google.com
Want to learn more commands? Check out our Command Cheat Sheet for Windows.
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