Get-HTTPStatusCode.ps1

# Any URL you want to test
$url = 'https://www.google.com'

# This will gather everything but that's OK
$http = (Invoke-WebRequest -Uri $url)

# I'm using the $http object membertype property to get the status code
Write-Output $http.StatusCode

The pester test being run from another system invokes this script and reads the output. The test is expecting 200, but this way if any other status code is found, I'll at least see that output in my test results.