Internet Speed Test 1.0A - PowerShell

# Runs a speed test by downloading a 10MB file temporarily
# Version: 1.0A
# Author: hl2guide

# Only run this script after stopping all other traffic/downloads (isolated test).

# Expected Internet Speed (in Mbps)
$expectedLineSpeed = 11
# Download File Size (10 or 100)
$testFileSize = 10

$fileToDownload = 'http://client.akamai.com/install/test-objects/'+ $testFileSize +'MB.bin'
# $fileToDownload = 'http://mirror.nforce.com/pub/speedtests/'+ $testFileSize +'MB.bin'
# $fileToDownload = 'http://speedtest.serverius.net/files/'+ $testFileSize +'MB.bin'

$message = 'Testing Internet Speed (' + $testFileSize + 'MB file), please wait...'
Write-Host
Write-Host
Write-Host
Write-Host
Write-Host $message -ForegroundColor Cyan

# Start Internet Speed Test
$a=Get-Date
Invoke-WebRequest $fileToDownload|Out-Null
$result = "$((10/((Get-Date)-$a).TotalSeconds)*8)"
$result = [math]::Round($result, 3)

# Outcomes
if($result -gt $expectedLineSpeed - 1)
{
    $outTextColor = 'Green'
    $speed = 'great'
}
elseif($result -gt $expectedLineSpeed - 2)
{
    $outTextColor = 'Magenta'
    $speed = 'fine'
}
elseif($result -gt $expectedLineSpeed / 2)
{
    $outTextColor = 'Yellow'
    $speed = 'passable'
}
else
{
    $outTextColor = 'Red'
    $speed = 'slow'
}

# Output Result
$message = 'Download Speed Result: ' + $result + ' Mbps' + ' ('+ $speed + ')'
Write-Host
Write-Host $message -ForegroundColor $outTextColor