Browser Synthetic Monitoring

Monitor Web Flows & Uptime — with Screenshots, History & Alerts

Watchlog runs your critical journeys every few minutes, captures step-by-step screenshots, checks assertions, and alerts your team via Email, Slack, Telegram or Webhooks. Debug failures fast with run history, timings, and P95 trends.

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Why browser synthetics?

Backend metrics say your app is “healthy”, yet users still fail to login or checkout. Synthetic monitoring exercises real user flows on a schedule and proves the journey actually works—end to end.

  • Validate critical paths: login, checkout, search, dashboards, and more.
  • Get step-by-step screenshots for instant visual context.
  • Track duration, average and P95 to prevent latency regressions.
  • Alert Email, Slack, Telegram, or custom Webhooks with rich payloads.

What you get with Watchlog

Flows & Uptime in one place

Journeys + ping checks. One clean dashboard.

Fast troubleshooting

Jump from failing step to its screenshot and logs.

Actionable alerts

Channels, routing, throttle & dedup out of the box.

History & trends

30-day success, last 10 runs, and performance lines.

Key Features

Step Actions & Assertions

goto, click, fill, waits, and content assertions for reliable journeys.

Screenshots Timeline

Each step captures a screenshot to speed up root-cause analysis.

History & P95

See last runs, average/p95 duration, and success trend over 30 days.

Flexible Schedules

Run every 5 minutes (or custom) from chosen regions.

Alerts & Webhooks

Email, Slack, Telegram, and custom endpoints with templated payloads.

Import / Export JSON

Version tests in Git and share flows between teams.

How it works

  1. 1. Create
    Add a synthetic test for a flow or page.
  2. 2. Record / Define
    Build steps via UI or import JSON.
  3. 3. Schedule
    Choose region & frequency (e.g. every 5m).
  4. 4. Assert & Alert
    Set success rules and notification routes.
  5. 5. Debug
    Use screenshots, timings & history to fix fast.

Start in Minutes

Import a simple login flow and schedule it to run every 5 minutes. Get screenshots and alerts on failure.

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Synthetic Test — login flow (JSON)


    {
        "name": "Watchlog login test",
        "options": {
          "viewport": {
            "width": 1366,
            "height": 768
          },
          "timeoutMs": 5000
        },
        "steps": [
            {
                "action": "goto", "url": "https://app.watchlog.io/account/login", "waitUntil": "domcontentloaded"
            },
            {
                "action": "waitForNetworkIdle"
            },
            {
                "action": "fill", "selector": "#email","value": "[email protected]"
            },
            {
                "action": "fill", "selector": "#password", "value": "••••••••"
            },
            {
                "action": "click", "selector": "text=login"
            },
            {
                "action": "waitFor", "selector": "text=Dashboards"
            }
        ]
      }

Also available via UI with Import/Export JSON.

Popular Use Cases

Auth & Login

Guarantee users can sign in across regions and providers.

Checkout & Payments

Catch broken buttons, captcha loops, and slow gateways early.

Critical Dashboards

Ensure KPIs load and charts render within your SLOs.

Synthetic Tests FAQs

How often can tests run?

Typical schedules start every 5 minutes; you can raise or lower per test.

What alert channels are supported?

Email, Slack, Telegram, and custom Webhooks with JSON payload templates.

Do you store screenshots?

We keep step screenshots for recent runs to accelerate debugging.

Can I import/export tests?

Yes—use the JSON format to version tests in Git and share with teammates.

Need something specific? Contact us

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