Your website looks fine.Until someone actually uses it.
Lampwatch doesn't admire your landing page. It loads it, challenges the rendered result, and investigates what failed — like a senior QA engineer who got tired of hearing, “It works on my machine.”
No public accounts yet. Invites will open in small batches.
Agent finding
yourapp.com/pricing · 390 × 844
Detected
Text overflow · 73px
History
9 scans · 6 days
Evidence attached
The .plan-toggle__price-note label overflows by 73px at 390px. Its chip is fixed-width and the label cannot wrap. Let the chip size to content or truncate. Recurring across 9 scans over 6 days.
Approach
Real browser
Coverage
Desktop + mobile
Output
Evidence attached
Access
Private preview
Meet the agent
Meet your new QA engineer.
It doesn't sleep, skip boring checks, or say “looks good to me.” Lampwatch explores your application like a real user, then thinks like a paranoid tester.
- 01
It explores like a real user.
Lampwatch opens the live URL in Chromium on desktop and mobile. It judges the rendered page, not the reassuring 200 response behind it.
Real browser · desktop + mobile · zero SDK
- 02
It challenges the details people skip.
Overflow, layout movement, broken images, and browser exceptions all get the same patient attention — scan after scan.
No boredom · no guesswork · scheduled checks
- 03
It comes back with evidence.
Every finding includes the selector or source location, viewport, measured value, and recurrence history your coding agent needs to act.
Source · viewport · recurrence · copyable brief
Roast mode
We don't hurt feelings.
We hurt bugs.
“Your pricing label is 73px wider than the space you gave it.”
“Your hero image is only decorative because it never loaded.”
“Your page returned 200. Its JavaScript had other plans.”
The brutal truth
You don't have a testing problem. You have a blindness problem.
Writing 200 test cases is easy. The hard part is knowing what nobody has noticed yet. Your users don't care how many tests you wrote. They care if your product works.
01 / MOBILE
Which page breaks only on mobile?
Text overflow is measured at a real mobile viewport width.
02 / LAYOUT
Which layout moves after load?
Cumulative layout shift is captured with the element responsible.
03 / MEDIA
Which image never reaches the user?
Failed responses and images that never decode are recorded.
04 / RUNTIME
Which error only appears in the browser?
Console exceptions arrive with source file, line, and column.
05 / UPTIME
Which production page quietly went down?
Deploy, DNS, TLS, and non-success response failures are surfaced.
Inside an issue
Not another useless report with 73 warnings.
Evidence attached.
Lampwatch tells you what broke, where it happened, the viewports it affects, and whether it keeps coming back. Enough context to start fixing instead of starting another repro session.
## What broke **Console error** on `https://yourapp.com/checkout` — severity `high`. ``` Uncaught TypeError: Cannot read properties of undefined (reading 'plan') ``` - **Source:** `checkout.a8f3e1.js:214:9` ## How it was detected Automated headless Chromium scan of `https://yourapp.com/checkout`. - **Viewports scanned:** 1280×720 desktop and 390×844 mobile - **Reproduces at:** both viewports — not a responsive-only bug - **History:** seen on 14 scans, first 9 days ago — this is not a one-off ## Your task 1. The source location above points into a built bundle. Use the site's source maps, or search the repository for the failing call, to find the originating source file. 2. Work out why the value is null/undefined at that point — an element read before it mounts, a missing guard on optional API data, or a race with an async load are the usual causes. 3. Fix the underlying cause and explain which one it was.
Private preview
Your app has blind spots.
We hunt them.
Give Lampwatch five minutes and it will find things your team didn't — not because your team is bad, but because nobody can manually explore every possibility. Join the waitlist for the private preview.
- 01
- Works before your customers do
- 02
- Finds bugs before support tickets
- 03
- Ship fast. Break fewer things.
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