Visual Sentinel - Catch broken pages uptime checks miss, now with mobile apps
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Visual Sentinel is rebuilt: a redesigned app, iPhone and Android apps, server monitoring with grouped alerts, and an MCP server for your AI assistant. The core job is the same. It opens your pages in a real browser, compares each screenshot with the last good one, and alerts you when a page looks broken while uptime checks say it's up. Also uptime, SSL, DNS, performance, APIs and domain expiry, 11 alert channels and white-label reports. From $15/month with a 7-day trial.
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Hi Product Hunt, I'm Rai. I've built and looked after client websites since 2019, and the complaint I heard most was "my site was broken for hours and my monitor said it was up." A plugin update breaks checkout, a theme change blanks the hero, a script error leaves a white page, and the uptime check still passes.
Visual Sentinel opens your pages in a real browser, compares each screenshot with the last good one, and tells you when a page looks different. It also checks uptime, SSL, DNS, performance, APIs, domain expiry and your servers.
New since our first launch:
- a redesigned app
- iPhone and Android apps
- server monitoring: when several sites on one server fail together, you get one grouped alert
- tiered visual alerts, so small changes go into a weekly summary instead of pinging you
- defacement and harmful-content findings raised as incidents
- white-label PDF reports and alerts for agencies
- private status pages behind a password or IP allowlist
- an MCP server to connect your AI assistant
- checks from Europe, the US and Asia
You can try it on your own site from the homepage: paste a URL for a free check, no signup. Plans start at $15 a month with a 7-day trial.
I'd love your feedback, especially on this: when a page breaks, what do you want the alert to show you first?