Visual Regression Testing for WordPress.
Know the moment your website looks broken.
WebChange Detector screenshots your pages, compares every pixel, and uses AI to tell real changes from noise. Catch broken webpages before your clients do.
or get the WordPress plugin and run checks from wp-admin
Works with any website. Built WordPress-first.
Trusted by agencies and site owners who ship WordPress every day
Three ways to catch a change.
Verify your own work, guard every update, and watch production around the clock. One platform, desktop and mobile.
Check updates in your own flow
Made for updates with WP management tools like MainWP, InfiniteWP, or UmbrellaWP, and for your own update routine.
Capture a screenshot, run your updates, capture a screenshot again, compare them, and see exactly what changed.
Explore On-Demand Checks → WP Auto UpdatesWP auto updates, on your schedule
Plan when WordPress auto updates run. We capture every page before and after, clear the cache after updating, and alert you only if something changed.
Explore Auto Update Checks → MonitoringWatch it around the clock
Scheduled checks from every 15 minutes to monthly, with quiet hours. One email per real change.
Explore Monitoring →An alert always means a real change.
Generic tools flag every carousel spin, cookie banner, and one-pixel shift. WebChange Detector understands the layout of your page: content that merely moved is not changed, motion is frozen before capture, and AI verifies what is left.
- Layout-aware comparison: a new banner does not set off every element below it.
- Sliders, animations, ads, and cookie banners neutralized before capture.
- AI classifies every change and writes a one-sentence summary per run.
- Teach it once what to ignore; the rule applies by meaning, not pixels.
Built WordPress-first. Ready for any site.
Run checks from wp-admin with the plugin, guard auto-updates, and monitor staging behind Basic Auth. Verified against the caching, page-builder, and security plugins that break generic tools.
- All three check types inside wp-admin, with a guided first run.
- Works with WP Rocket, Elementor, Divi, Cloudflare, Wordfence, Astra, GeneratePress.
- WPML and Polylang: every language is its own watched URL.
- MainWP addon: safe updates across a whole fleet, with preflight cost checks.
Run visual QA across every client site.
One dashboard for the whole fleet. Subaccounts with limits for each client, white-label plugin views, usage forecasting, and bulk settings, so 200 sites feel like one.
- Subaccounts with their own token, check limit, and plan label.
- White-label the plugin per client: hide billing, hide tabs, keep your brand.
- Usage forecast to renewal, so there are no surprise overages.
- A public before and after link for every change, ready to forward to a client.
Catches broken JavaScript too.
A page can look fine and still be broken. Every check also compares your site’s browser console errors and flags what an update introduced or removed: a dead add-to-cart button, a failed form script. Included from the Team plan.
Running in minutes, from wp-admin or the web-app dashboard.
Connect your site
Install the plugin, or just enter your URL in the web-app: we pull your pages automatically. The crawl maps everything worth watching (pages, posts, languages) in a couple of minutes, and new content joins the list on its own.
Choose how to check
On-Demand Checks , WP Auto Update Checks, Monitoring Checks, or all three, per page and per device. Every check captures a full-page screenshot. Choose between screen sizes desktop and mobile or both. Dynamic elements like sliders, animations, and cookie banners get neutralized before the shot.
Relax
You get one email per real change, with an AI summary and a link you can share. The AI compares each capture against the last, filters roughly 95% of rendering noise, and writes a one-sentence summary per run.
Agencies keep the receipts.
“As an agency owner, WebChange Detector helps me keep the websites I maintain in check. What really stands out is that the tool can detect layout shifts caused by dynamic content and account for them, so I’m only notified when there are real, meaningful changes.”
When you’re managing a larger number of sites, having a simple way to run quality assurance after updates, and to catch unexpected content changes, gets more and more important.
Oliver · BockPress
“The tool has significantly streamlined our internal workflows and brought a new level of precision to our quality assurance. Highly recommended for any agency!”
We had been looking for a solution like this for a long time and finally found it. While focus naturally fades during manual checks, the tool reliably identifies even the smallest visual discrepancies. This allows us to deploy our team much more effectively elsewhere. The fact that the software is continuously being developed and the support impresses with quick response times perfectly rounds off the package.
Martin · Webschmiede
“We’ve been using WebChange Detector for over a year across all our WordPress maintenance contracts, and it has become an essential part of how we work as an agency. Highly recommended for WordPress agencies!”
We explicitly include automatic visual change detection in our maintenance packages and communicate this as added value to our clients, allowing us to stay proactively on top of defined core pages. And just as valuable for freelancers managing WordPress sites on their own.
Jennifer · 7South Digital
“This platform has been a game-changer in helping us spot changes or issues that need immediate attention. WebChange Detector 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.
Serafin · eLearningWP
“When managing nearly 50 websites, choosing the right tool makes a huge difference. WebChange Detector is the best visual monitoring tool I’ve ever used. My only regret is this: I wish I had discovered it sooner.”
Its design is incredibly thoughtful: screenshots are taken after the page has fully loaded, so there are no blank or incomplete captures. Since using it, I’ve saved a tremendous amount of time and significantly reduced visual fatigue from manual checking.
Kai Shao · Auki
Frequently asked questions
Visual regression testing compares screenshots of a page before and after a change and flags the visual differences. WebChange Detector adds layout awareness and AI verification, so only real changes surface, not sliders, banners, or pixel noise.
Any public website can be monitored by URL. WordPress sites additionally get the plugin: checks from wp-admin, automatic URL sync, and the auto-update safety net.
Uptime monitoring tells you the server answered; visual monitoring tells you the page looks right. A site can be up and still have a broken checkout, a missing menu, or a defaced homepage, that is what WebChange Detector catches.
Minutes. Install the plugin or enter a URL, pages sync automatically, and the first before/after comparison is typically ready within five minutes.
Catch the next visual bug before anyone else.
Start with a free trial, connect a site, and see your first before and after comparison today.
