Update check-dns.ps1

Author: Markus Fleschutz

Scripts/check-dns.ps1

@@ -2,40 +2,34 @@
 .SYNOPSIS
 	Checks the DNS resolution 
 .DESCRIPTION
-	This PowerShell script checks the DNS resolution with frequently used domain names.
+	This PowerShell script checks the DNS resolution using frequently used domain names.
 .EXAMPLE
 	PS> ./check-dns
-	11.8 domains per second DNS resolution
+	56.7 domains per second DNS resolution
 .LINK
 	https://github.com/fleschutz/PowerShell
 .NOTES
 	Author: Markus Fleschutz | License: CC0
 #>
 
 try {
-	$StopWatch = [system.diagnostics.stopwatch]::startNew()
-
-	write-progress "Reading Data/domain-names.csv..."
+	write-progress "Reading table from Data/domain-names.csv..."
 	$Table = Import-CSV "$PSScriptRoot/../Data/domain-names.csv"
+	$Count = $Table.Length
 
+	write-progress "Resolving $Count domain names..."
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
 	if ($IsLinux) {
-		foreach($Row in $Table) {
-			write-progress "Resolving $($Row.Domain)..."
-			$null = dig $Row.Domain +short
-		}
+		foreach($Row in $Table) { $null = dig $Row.Domain +short }
 	} else {
-		foreach($Row in $Table) {
-			write-progress "Resolving $($Row.Domain)..."
-			$null = Resolve-dnsName $Row.Domain
-		}
+		foreach($Row in $Table) { $null = Resolve-DNSName $Row.Domain }
 	}
-	$Count = $Table.Length
-
 	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+
 	$Average = [math]::round($Count / $Elapsed, 1)
 	"$Average domains per second DNS resolution"
 	exit 0 # success
 } catch {
 	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
 	exit 1
-}
+}