WebChangeDetector — Visual Regression Testing for Agencies

Visual Checks That Catch Bugs Before Your Clients Do

Automatic visual monitoring that visually catches broken layouts. Sleep better after every update.
Clean monitoring dashboard showing website change detection and visual regression testing controls

The Silent Chaos of WordPress Maintenance

One auto-update, one plugin conflict, one “quick CSS fix” — and suddenly a client’s homepage looks like abstract art. The worst part? You usually find out when they email you.

WordPress Auto-Updates Silently break layouts without warning

Plugin Conflicts You discover at 2am or Monday morning

Cascading Changes That ‘small change’ that broke the homepage

Isometric 3D illustration showing a cracked WordPress interface with red error icons, warning gears, and disconnected puzzle pieces representing a site crash.

WebChange Detector watches your sites so you don’t have to

We take screenshots before and after changes, compare them with pixel-perfect precision, and alert you only when something actually breaks. No more manual checking. No more client surprises.

Before & After Screenshots: Automatic capture around every change

Pixel-Perfect Comparison: Intelligent diff that ignores false positives

Smart Alerts: Only notified when something actually breaks

One Dashboard, All Your Clients Websites

Manage hundreds of WordPress sites from a single dashboard. See what changed, where, and when — without logging into each site individually.

Smart Comparison

Our intelligent comparison engine detects real changes, not just shifted pixels.

Auto-Update Protection

WordPress updated overnight? We captured before-and-after screenshots automatically.

Built for Reselling

Create subaccounts for your clients with their own API tokens and check limits.

Zero False Alarms

Layout moved down because of a new banner? We know. That’s not a bug — we won’t bother you.

Simple Setup For WP Websites

Connect Your WP Sites

Install our WordPress plugin on your client sites, or use the API. It takes about 30 seconds per site. We automatically detect all pages and posts.

Configure What to Watch

Choose which pages to monitor, how often, and on which devices (desktop, mobile, or both). Set your sensitivity threshold.

Get Alerted, Not Annoyed

When we detect a change above your threshold, you get an email with a side-by-side comparison. If nothing breaks, you hear nothing.

API & Webhooks

Integrate visual testing into your CI/CD pipeline. Trigger checks via API, receive results via webhook. Automate everything.

Desktop & Mobile

Choose to monitor desktop (1920px), mobile (375px), or both viewports — no extra charges either way.

Because let’s be honest: that hamburger menu bug only ever shows up on mobile, right when your client is demoing to their boss.

Notifications

Get notified your way — via email, Slack, Teams, or any tool you prefer.

Fully integrated with Zapier, plus webhooks for n8n, Make, or your own custom setup. Changes detected? You’ll know instantly, wherever you are.

WordPress Native

Deep integration with WordPress. Works with WP Rocket, Elementor, Divi, WooCommerce, and pretty much every plugin.
As someone managing multiple websites weekly, WebChangeDetector has become an indispensable tool for our workflow. Our focus is on providing comprehensive care plans for our clients, ensuring their websites are always updated, secure, and functioning smoothly. This platform has been a game-changer in helping us spot changes or issues that need immediate attention.
Serafin, eLearningWP

Ready to Stop Babysitting Websites?

Start your free trial today. No credit card required. Set up your first site in under 5 minutes.