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Visual Sentinel
Catch broken pages uptime checks miss, now with mobile apps
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.
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?
About Visual Sentinel on Product Hunt
“Catch broken pages uptime checks miss, now with mobile apps”
Visual Sentinel was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #140 on the daily leaderboard. 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.
On the analytics side, Visual Sentinel competes within Productivity, SaaS and Developer Tools — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how Visual Sentinel performed against the three products that launched closest to it on the same day.
Who hunted Visual Sentinel?
Visual Sentinel was hunted by Rai Ansar. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Visual Sentinel including community comment highlights and product details, visit the product overview.
Rai Ansar
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?