Enterprise tools like Datadog/New Relic charge a lot for "Synthetic Monitoring" (headless browser checks), so I built my own alternative over the weekend using Playwright.
It currently includes:
Checkout Defender (Visits product -> Add to Cart -> Verifies Payment Iframe)
Login Validator (Checks auth from US/EU)
API Deep-Check (Validates JSON structure)
It's free to use (no signup required for the basic audit).
You can try the tools here: https://app.pingsla.com
The stack is React, Node.js, and Playwright on DigitalOcean. Feedback welcome!