Playwright Monitoring: Turn E2E Tests Into Production Monitors

You already have Playwright tests. They run in CI on every pull request, they assert that login works and checkout completes, and then they stop — because CI only runs them against a branch, at merge time. The moment the code is in production, those tests go silent. A third-party script breaks checkout at 3 AM and your perfectly good test suite says nothing, because nothing triggered it. Playwright monitoring closes that gap: you take the same browser tests and run them on a schedule against production, turning your end-to-end suite into a synthetic monitoring system that watches real user journeys continuously. Prerequisites Node.js 18+ and an existing project ( npm install -D @playwright/test , then npx playwright install chromium ). A deployed production (or staging) URL to run checks against. A dedicated synthetic test account — never a real customer's credentials. A secret store for that account's credentials (GitHub Actions secrets, or your platform's equivalent). Never hard-code them. Step 1 — Write a check that asserts on what the user sees A monitor-grade check is not "did the page load." It is "could a user complete the thing they came to do." Assert on the outcome, with a generous timeout for real-world latency: import { test , expect } from " @playwright/test " ; test ( " checkout reaches confirmation " , async ({ page }) => { await page . goto ( " https://shop.example.com " ); await page . getByRole ( " button " , { name : " Add to cart " }). click (); await page . getByRole ( " link " , { name : " Checkout " }). click (); await page . getByLabel ( " Email " ). fill ( process . env . SYNTHETIC_EMAIL ! ); await page . getByLabel ( " Card number " ). fill ( " 4242424242424242 " ); await page . getByRole ( " button " , { name : " Pay now " }). click (); // The assertion a 200 OK can never make for you: await expect ( page . getByText ( " Order confirmed " )). toBeVisible ({ timeout : 15000 , }); }); Credentials come from process.env , not the source. The t