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Visual regression testing for WordPress — know when an update breaks a site

Plugin updates, theme updates and core releases can quietly change how your pages render. QA Proof takes scheduled screenshots of the pages you care about, compares them against an approved baseline with AI, and emails you when a page no longer looks right.

Start free — no credit card How monitoring works →

Free 10-test trial · Free plugin on wordpress.org

4 client sites monitored
Client A · Home · daily
98
Client B · Shop · daily
96
Client C · Home · weekly
74
Client D · Blog · weekly
95

“Update all” is a gamble you take every week

If you maintain WordPress sites, you run updates constantly — and every one of them can shift a layout, break a slider or silently drop a section, without throwing a single error. Manually clicking through every page of every site after every update doesn't scale, so most of the time the person who finds the broken page is the client. Website change monitoring closes that gap: the checking happens on a schedule, whether or not you remember to look.

How it works

1

Connect your site

Install the free QA Proof plugin from wordpress.org and connect it with an API key — or simply paste any page URL into the dashboard. Nothing to configure on the server.

2

Approve a baseline

The first capture becomes your reference — the page as it should look. After an intentional redesign, approve the new version in a click and it becomes the new baseline.

3

Update with a safety net

Monitors re-check pages daily, weekly or monthly. When the comparison score drops below your threshold (90 by default), you get an email explaining what changed — usually before anyone else notices.

Built for people who maintain WordPress sites

Free WordPress plugin

Install from wordpress.org, paste your API key, and your site is connected to the QA Proof dashboard.

Scheduled change monitoring

Daily, weekly or monthly checks per page. Put a client's homepage on daily and slower pages on weekly — each monitor has its own cadence.

AI explanations, not pixel noise

Instead of flagging every changed pixel, the AI explains what changed and whether it matters. Dynamic content is masked, so a rotating banner doesn't wake you up.

Email alerts with a threshold

Every run gets a 0–100 score. When it falls below your alert threshold — 90 by default — an email goes out with the details.

Client-ready PDF reports

Scored reports with concrete findings and recommendations, exportable as PDF — proof of the maintenance work your care plan actually does.

More than visual checks

The same dashboard runs WCAG 2.1 accessibility audits, responsive checks across desktop, tablet and mobile, and Figma design-fidelity comparisons.

Who uses it

WordPress agencies

Monitor every client site on a care plan from one dashboard, and attach a PDF report to the monthly invoice.

Freelancers

Run updates on ten sites without clicking through ten sites afterwards — the checks happen on schedule and the alerts find you.

Site owners

You don't need to be a developer to read the report — it says in plain language what changed on your site and whether it matters.

Common questions

Set up a monitor for the pages you care about and approve a baseline while the site looks correct. After you run updates, trigger a check (or wait for the next scheduled run): QA Proof captures the page again, the AI compares it against the baseline, and you get a scored report in a few minutes explaining what changed and whether it matters. If the score drops below your alert threshold (90 by default), you also get an email.
No. The free QA Proof plugin on wordpress.org connects your site to your QA Proof account with an API key, which is convenient if you live in wp-admin. But you can also just paste the URL of any public page into the qaproof.io dashboard — nothing to install on the site at all.
Far fewer than with pixel-diff tools. QA Proof masks dynamic content and uses AI comparison instead of raw pixel matching, so it separates a carousel showing a different slide from a layout that actually broke. When something does change, the report explains what changed and whether it matters — not just that pixels differ.
Yes. QA Proof tests the rendered page in a real browser, so it works with whatever your site outputs — any theme, any page builder, any plugin stack.
You start with a free one-time trial of 10 AI test runs — no credit card. Paid plans start at $29/month (Pro: 100 runs and 2 monitors) with Business at $79/month (300 runs, 10 monitors) and Scale at $199/month (1000 runs, 25 monitors). Annual billing is 20% off, and every plan has a 14-day money-back guarantee.

Comparing tools? See how QA Proof compares to Percy and BackstopJS.

Put your WordPress sites on watch

Free 10-test trial, no credit card. Your first monitor takes a few minutes to set up.

Start free — no credit card