Add SpeedTest

SpeedTest

@@ -0,0 +1,53 @@
+[CmdletBinding()]
+param(
+    [int]$DownloadMB = 50,
+    [int]$UploadMB = 20
+)
+
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 -bor [Net.SecurityProtocolType]::Tls13
+
+Write-Host "Initializing HTTPS speed test via Cloudflare CDN..." -ForegroundColor Cyan
+
+# 1. Latency (TTFB probe)
+$wc = New-Object System.Net.WebClient
+$stopwatch = [System.Diagnostics.Stopwatch]::StartNew()
+try {
+    $null = $wc.DownloadString("https://speed.cloudflare.com/meta")
+    $latencyMs = [math]::Round($stopwatch.ElapsedMilliseconds)
+    Write-Host "Latency:     $latencyMs ms" -ForegroundColor Yellow
+} catch {
+    Write-Warning "Latency probe failed: $_"
+}
+
+# 2. Download Test
+$downBytes = $DownloadMB * 1MB
+Write-Host "Testing Download ($DownloadMB MB payload)..." -NoNewline
+$stopwatch.Restart()
+try {
+    $downData = $wc.DownloadData("https://speed.cloudflare.com/__down?bytes=$downBytes")
+    $stopwatch.Stop()
+    $downSec = $stopwatch.Elapsed.TotalSeconds
+    $downMbps = [math]::Round((($downData.Length * 8) / $downSec) / 1MB, 2)
+    Write-Host " Done." -ForegroundColor Green
+    Write-Host "Download:    $downMbps Mbps" -ForegroundColor Green
+} catch {
+    Write-Warning "`nDownload failed: $_"
+}
+
+# 3. Upload Test
+$upBytes = New-Object byte[] ($UploadMB * 1MB)
+(New-Object System.Random).NextBytes($upBytes)
+Write-Host "Testing Upload ($UploadMB MB payload)..." -NoNewline
+$stopwatch.Restart()
+try {
+    $null = $wc.UploadData("https://speed.cloudflare.com/__up", "POST", $upBytes)
+    $stopwatch.Stop()
+    $upSec = $stopwatch.Elapsed.TotalSeconds
+    $upMbps = [math]::Round((($upBytes.Length * 8) / $upSec) / 1MB, 2)
+    Write-Host " Done." -ForegroundColor Green
+    Write-Host "Upload:      $upMbps Mbps" -ForegroundColor Green
+} catch {
+    Write-Warning "`nUpload failed: $_"
+}
+
+$wc.Dispose()