I built a tool that detects when websites break visually (before/after screenshots)
Hey everyone,
I realized most monitoring tools only tell you when a site is down.
But they don’t tell you when the UI breaks.
So I built GoScreenAPI.
It monitors websites and shows:
- before/after screenshots
- visual diffs (what changed)
- alerts when something breaks
Example:
A client’s “Add to cart” button disappeared — uptime was fine, but revenue dropped.
This tool would catch that instantly.
I’m looking for early users.
Happy to give free access.
Would this be useful for you?
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The "uptime green but revenue dropping" disconnect is something we see constantly on the Shopify side. Stores with 3+ ghost apps almost always have at least one broken navigation or checkout element. The uptime monitor says fine. The merchant is watching conversion tank and can't explain why.
The Add to Cart example you used is a real pattern. App updates push conflicting JS, theme files stop rendering the button correctly, and nothing triggers an alert because the page technically loaded. The visual break lives in the gap between "server responded" and "user can actually buy."
We've been running Shopify store health scans and the correlation between app bloat and visual breaks shows up consistently enough that it's become one of our detection flags. A store running 8+ active apps has a meaningful probability of at least one broken checkout element that uptime monitoring completely misses.
What's your detection latency right now? Time from first visual break to alert firing.
"Don't just monitor if your server is up. Monitor if your customers can actually buy. GoScreenAPI detects visual breaks that standard uptime monitors miss."