---
title: What if the app won’t open?
description: "On first launch, macOS may show a security warning (because the app isn't code-signed). Right-click the app and select \"Open,\" then click \"Open\" in the security dialog. It'll work normally after that. ## ALTERNATIVE METHOD: If the above doesn't work:…"
url: "https://ssh-assistant.com/docs/what-if-the-app-wont-open/"
updated: "2025-12-08"
category: Site Load Tester / General questions
---

# What if the app won’t open?

On first launch, macOS may show a security warning (because the app isn't code-signed).

Right-click the app and select "Open," then click "Open" in the security dialog.

It'll work normally after that.

## ALTERNATIVE METHOD:

If the above doesn't work:

1. Open System Settings (or System Preferences)
2. Go to "Privacy & Security"
3. Scroll down to "Security" section
4. You should see a message about SiteLoadTester being blocked
5. Click "Open Anyway"
6. Confirm by clicking "Open"

## TROUBLESHOOTING:

If you see "App is damaged" error:

Open Terminal and run:
cd /Applications
xattr -cr SiteLoadTester.app

Then try opening the app again using the steps above.

## REQUIREMENTS:

- macOS 13.0 (Ventura) or later
- Apple Silicon (M1/M2/M3) Mac