WATCHLOG PRODUCT · FRONTEND
Run your user flows 24/7 from around the world.
Playwright-powered browser journeys that automate your critical paths — checkout, login, onboarding — and alert the moment a step fails.
THE PROBLEM
Your critical flows break when nobody is watching.
Your checkout worked yesterday. Today, a dependency change broke the payment step — and you found out from a customer tweet 4 hours later. Synthetic monitoring runs your most important user journeys continuously so you catch regressions the moment they happen.
Flow breaks go undetected overnight
Deploys that run after business hours break flows that engineers will not discover until morning.
You cannot test from your users locations
A flow that works from your office may fail for users in other regions due to CDN or network issues.
Failures are hard to reproduce
Without screenshots and step-level diagnostics, intermittent failures are nearly impossible to debug.
WHAT'S MONITORED
Everything Synthetic Monitoring captures.
Real signals collected by the Watchlog Agent — available in your dashboard within 60 seconds of enabling.
Playwright test scripts
Write browser journeys using the Playwright API. Support for click, fill, navigate, assert, wait, and screenshot.
Global probe network
20+ probe locations run your journeys on schedule — from North America, Europe, Asia-Pacific, and beyond.
Step-by-step diagnostics
Each failed step shows the step name, assertion that failed, and a screenshot captured at failure time.
Screenshot diffs
Visual comparison between a passing screenshot and the failing state — see exactly what changed.
Performance waterfall
Network requests, resource loads, and render timing captured per journey run.
Scheduled checks
Run journeys every 1, 5, 10, or 60 minutes from one or all probe locations.
LIVE VIEW
Journey results — step by step.
See which step passed, which failed, how long each step took, and what the page looked like at failure.
CAPABILITIES
What Synthetic Monitoring gives you.
Playwright automation
Industry-standard browser automation with full access to the Playwright API and test runner.
Multi-region execution
Run from 1 or all probe locations simultaneously to detect regional failures instantly.
Instant failure alerts
Slack, PagerDuty, email, or webhook notification the moment a journey fails.
Visual regression detection
Screenshot at each step compared against baseline — catch visual regressions automatically.
Scheduled or on-demand
Run journeys on a schedule or trigger them manually after a deploy.
Performance budget
Assert page load time and resource count per step to catch performance regressions.
USE CASES
How engineering teams use Synthetic Monitoring.
Checkout flow monitoring
Run the full checkout — add to cart, fill form, pay — from 5 global probe locations every 5 minutes. Know the moment payment breaks.
Login and auth monitoring
Automate the login flow to verify authentication, session creation, and redirect. Catch auth failures before users get locked out.
Post-deploy regression check
Trigger a synthetic run automatically after every production deploy. Catch regressions in critical flows within 2 minutes.
Regional availability testing
Your app works in the US. Does the CDN serve correctly in APAC? Probes from Sydney and Tokyo tell you in minutes.
PLATFORM FIT
Synthetic Monitoring inside the Watchlog platform.
Synthetic Monitoring pairs with RUM to compare probes vs. real users, API Monitoring for single-endpoint checks, and Alerts for immediate notification when journeys fail.
QUICK START
Start Synthetic Monitoring in under 2 minutes.
No YAML. No complex configuration. The Watchlog Agent handles discovery automatically.
Create a New Synthetic Monitor
Navigate to the Synthetic Monitoring dashboard and create a new monitor.
https://app.watchlog.io/syntheticAdd a Playwright Script
Paste or write your Playwright script to simulate real user actions such as page navigation, login, checkout, and form submission.
Monitor User Journeys
Watchlog runs your scripts automatically and displays screenshots, execution traces, response times, failures, and alert notifications.
GET STARTED
Start monitoring with Synthetic Monitoring.
Automated browser journeys, global probes, and step-level failure diagnostics — 24/7.
Questions? Talk to us → [email protected]