The WordPress Integrity Checker checks your WordPress installation by detecting modified files, permissions issues and other common problems.
As of April 2026, Integrity Checker is a WordPress secure plugin with 200 active installations and a 4.8/5 rating from 6 reviews. It has been downloaded 12K+ times in total. Requires WordPress 4.4+ and PHP false+. Available on WordPress.org since 2017. Top alternative: BBQ Firewall – Fast & Powerful Firewall….
Integrity-checker uses a mix of traditional and new techniques to scan your website for potential issues. First and foremost, it verifies that all installed code is identical to it’s original version. By comparing WordPress core, plugins and themes in your installation with the original versions available at wordpress.org, Integrity-checker can quickly determine if there are any changes you need to be aware of. Integrity-checker also lets you compare your local version to the original to help you determine if you’ve been hacked.
Additionally, Integrity-checker scans all installed files for permission issues. Ensuring correct permissions is vital for WordPress security, as with any PHP based web application.
Lastly, Integrity-checker will look through some of the basic WordPres…
| WordPress | 4.4+ requiredTested up to 4.7.33 |
| PHP | false+ required |
…and 3 more changes
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.