Your Site Looks Broken. Your Monitor Says It's Fine.
Visual Sentinel renders your pages in a real browser and compares screenshots pixel-by-pixel. Catch broken layouts, missing images, and visual regressions that return HTTP 200.
Set up in 60 seconds. No credit card required.
“We caught 3 outages in the first week that our old monitor missed.” — Eric D., Powered Storage
What Is Visual Monitoring?
Visual monitoring — also called visual regression detection — is an automated process that takes screenshots of your web pages and compares them pixel-by-pixel against a known-good baseline. When something changes visually — a broken CSS file, a missing image, a layout shift, or a third-party script injecting unwanted content — the system detects the difference and alerts you. This catches issues that traditional uptime monitors miss entirely: a page can return HTTP 200 OK while rendering a blank white screen, showing broken layouts, or displaying the wrong content. Visual Sentinel uses Playwright with a real Chromium browser to render your pages exactly as visitors see them, then compares each screenshot against the baseline with a configurable sensitivity threshold to reduce false positives from dynamic content like ads or timestamps.
What Our Users Say
“I tried UptimeRobot and ChecklyHQ, but neither solved the problem of finding broken pages until we checked manually. With Visual Sentinel, we get instant alerts and can fix our WordPress sites quickly instead of finding issues by accident.”
Eric D.
Powered Storage
“We run an agency and due to Elementor updates or cache issues, some client websites would break. We only found out from client complaints because UptimeRobot didn't catch visual issues. After switching to Visual Sentinel, we get alerts about broken pages in minutes. Would recommend 5/5.”
Jeff QB
The DWCO
“Managing many projects, I can't always keep an eye on every website. When something broke after an update, we wouldn't know until someone reached out. After using Visual Sentinel, life has become a lot easier knowing we'll be alerted via Slack and any team member can jump on it immediately.”
Shahid K.
CueBytes
Automated Screenshots
We take full-page screenshots of your site on every check using a real browser (Playwright + Chromium). Not just HTTP pings.
Pixel-Level Comparison
Detect even subtle visual changes. Layout shifts, missing assets, font changes, color differences — nothing slips through.
Adjustable Sensitivity
Set your own threshold for what counts as a "change." Ignore dynamic content like ads or timestamps while catching real issues.
Instant Visual Change Alerts
Get notified immediately when a visual regression is detected. See a side-by-side diff of what changed.
Screenshot History
Browse historical screenshots to see how your site has evolved. Pinpoint exactly when a visual issue was introduced.
Part of 6-Layer Monitoring
Visual monitoring runs alongside uptime, performance, SSL, and DNS checks. One tool, complete coverage.
Caught in the Wild
These are real production issues detected by Visual Sentinel. No demos, no staging — actual monitoring in action.
How It Works
Add Your Page
Enter the URL you want to visually monitor. We capture a baseline screenshot immediately.
Set Sensitivity
Choose how sensitive the comparison should be. Filter out dynamic elements that change normally.
Review Changes
When we detect a visual change, you get an alert with a side-by-side comparison showing exactly what changed.
Frequently Asked Questions
Start Monitoring in 60 Seconds
Starting at $5.40/mo — catch visual bugs before your users do
Check Your Site Free