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MainWP offers the Regression Testing add-on to detect visual and code changes on your child sites after updates.

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What You’ll Learn

  • What the Regression Testing add-on does
  • Key features available
  • How to get started

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What It Does

The Regression Testing add-on monitors changes in your child sites’ source code. It helps you spot unexpected modifications after plugin, theme, or WordPress core updates by comparing HTML snapshots between scans. Regression Testing add-on overview showing monitoring features

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Key Features

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Comparison Views

The add-on provides multiple ways to review differences:
  • Raw HTML comparisons
  • Rendered before/after views
  • CSS/JS file changes (when tracking enabled)
Regression Testing comparison view showing HTML differences between scans

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Get Started

For complete setup instructions and configuration options, see the Regression Testing documentation.