A simple script to verify that the DNS update has propagated (Powershell / Windows)

Background: We updated a few name server records and removed references to AP ones. And this script simply queries your DNS and ensures that the removed one has been propagated.

domains.txt is self-explanatory - has all the (removed) domains listed, one per line.

while ($true){ foreach ($dns in get-content .\domains.txt) 

{ 

if (Resolve-DnsName -type NS $dns | findstr /i "dns.ap") { } else { Write-host "$dns no AP" } 

}

 start-sleep -s 120

 }