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

What You’ll Learn

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

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.

Key Features


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)

Get Started

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