This script checks one or more websites and reports their HTTP status

url_monitor.ps1

# Website Health Checker Script

param(
    [string[]]$Urls = @("https://www.google.com"),
    [string]$LogFile = $null,
    [int]$TimeoutSeconds = 30,
    [switch]$Quiet
)

# Function to write timestamped log entries
function Write-Log {
    param([string]$Message, [string]$Level = "INFO")
    
    if (-not $Quiet) {
        Write-Host $Message
    }
    
    if ($LogFile) {
        $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
        $logEntry = "[$timestamp] [$Level] $Message"
        Add-Content -Path $LogFile -Value $logEntry
    }
}

# Function to check website status
function Test-Website {
    param([string]$Url)
    
    try {
        $stopwatch = [System.Diagnostics.Stopwatch]::StartNew()
        $response = Invoke-WebRequest -Uri $Url -TimeoutSec $TimeoutSeconds -UseBasicParsing
        $stopwatch.Stop()
        $responseTime = $stopwatch.ElapsedMilliseconds
        
        $result = [PSCustomObject]@{
            Url = $Url
            StatusCode = $response.StatusCode
            Status = if ($response.StatusCode -eq 200) { "SUCCESS" } else { "WARNING" }
            ResponseTime = $responseTime
            Message = "HTTP $($response.StatusCode) - ${responseTime}ms"
            Error = $null
        }
        
        return $result
    }
    catch {
        $result = [PSCustomObject]@{
            Url = $Url
            StatusCode = $null
            Status = "ERROR"
            ResponseTime = $null
            Message = $_.Exception.Message
            Error = $_.Exception.Message
        }
        
        return $result
    }
}

# Main execution
Write-Log "Website Health Check - $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')"
Write-Log "Checking $($Urls.Count) website$(if($Urls.Count -ne 1){'s'})..."
Write-Log ""

$results = @()

foreach ($url in $Urls) {
    $result = Test-Website -Url $url
    $results += $result
    
    # Format output based on status
    switch ($result.Status) {
        "SUCCESS" { 
            Write-Log "✓ $($result.Url) - $($result.Message)" "SUCCESS"
        }
        "WARNING" { 
            Write-Log "⚠ $($result.Url) - $($result.Message)" "WARNING"
        }
        "ERROR" { 
            Write-Log "✗ $($result.Url) - $($result.Message)" "ERROR"
        }
    }
}

# Summary
Write-Log ""
$successCount = ($results | Where-Object { $_.Status -eq "SUCCESS" }).Count
$warningCount = ($results | Where-Object { $_.Status -eq "WARNING" }).Count
$errorCount = ($results | Where-Object { $_.Status -eq "ERROR" }).Count

Write-Log "=== SUMMARY ==="
Write-Log "Total sites checked: $($results.Count)"
Write-Log "Successful (HTTP 200): $successCount"
Write-Log "Warnings (Non-200): $warningCount"
Write-Log "Errors (Failed): $errorCount"

# Return results for programmatic use
return $results

Check a single website (default: Google)

.\website_monitor.ps1

Check multiple websites

.\website_monitor.ps1 -Urls "https://google.com", "https://github.com", "https://stackoverflow.com"

Check websites with logging

.\website_monitor.ps1 -Urls "https://google.com", "https://example.com" -LogFile "health_check.log"

Quiet mode (only log to file, no console output)

.\website_monitor.ps1 -Urls "https://google.com" -LogFile "check.log" -Quiet

Custom timeout

.\website_monitor.ps1 -Urls "https://slowsite.com" -TimeoutSeconds 60