Title: Plugin Compatibility Checker
Author: compatshield
Published: <strong>20 Тамыз, 2020</strong>
Last modified: 26 апреля, 2026

---

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# Plugin Compatibility Checker

 By [compatshield](https://profiles.wordpress.org/compatshield/)

[Download](https://downloads.wordpress.org/plugin/plugin-compatibility-checker.zip)

 * [Details](https://kk.wordpress.org/plugins/plugin-compatibility-checker/#description)
 * [Reviews](https://kk.wordpress.org/plugins/plugin-compatibility-checker/#reviews)
 *  [Installation](https://kk.wordpress.org/plugins/plugin-compatibility-checker/#installation)
 * [Development](https://kk.wordpress.org/plugins/plugin-compatibility-checker/#developers)

 [Support](https://wordpress.org/support/plugin/plugin-compatibility-checker/)

## Description

The **Plugin Compatibility Checker** helps you keep your WordPress site stable and
secure by scanning installed plugins for PHP, Database, and WordPress version compatibility.

**🆕 WordPress 7.0 Database Readiness**
 WordPress 7.0 introduces stricter database
requirements (MySQL 8.0+ / MariaDB 10.6+). Many hosting environments still run older
database versions which may silently block updates. This plugin now detects database
compatibility and warns you before upgrading.

**$1/month License Required (Entry Plan)**
 You must subscribe to the CompatShield
Portal ($1/month recurring) to obtain a **license key**. Once activated, you will
be able to see plugin compatibility results (up to PHP 8.5) and database compatibility
directly inside your WordPress admin.

**📺 Video Tutorial**
 Watch step-by-step how to activate your license & run your
first scan:

**Quick Setup Steps**
 1) Subscribe  Get your license key from the Portal 2) Add
your domain inside the License tab 3) Copy your License Key 4) Paste License Key
inside Plugin Settings in WP Admin 5) Click **Validate License** 6) Click **Save
Settings** 7) Go to Plugin Main Page  Click **Rescan**

**Pro Version (Upgrade)**
 Upgrading to Pro unlocks the full CompatShield Portal
Dashboard with advanced features — vulnerability summary, detailed scan results,
notifications, historic analysis, plugin issues overview, premium ZIP upload scanning,
and multi-layer compatibility intelligence including database upgrade readiness.

**Subscribe / Upgrade to Pro:** https://www.compatshield.com/

### ✨ Key Features

 * **PHP Compatibility Check** – Scan plugins for PHP compatibility.
    - $1/month license: Shows PHP compatibility results directly inside WP Plugin
      backend (up to PHP 8.5)
    - Pro license: Deeper breakdowns, insights, and analysis inside Portal Dashboard
 * **Database Compatibility Check (NEW 🚀)** – Detect MySQL/MariaDB version and 
   ensure WordPress 7.0 readiness.
    - Detects outdated MySQL (< 8.0) and MariaDB (< 10.6)
    - Warns if hosting environment may block WordPress updates
    - Helps prevent upgrade failures
    - Pro: Advanced insights and upgrade recommendations
 * **Plugin Rescan** – Quickly rescan whenever you install or update plugins.
 * **Email Notifications (Pro)** – Get notified when scans complete or risks are
   detected.
 * **Portal Integration (Pro)** – View full detailed results in the CompatShield
   Portal Dashboard.
 * **Vulnerability Summary (Pro)** – Basic vulnerability insights available in the
   Portal.
 * **“No Data” Plugins Handling** – Easily identify custom/premium plugins or removed
   versions not available on WordPress.org.

### 🔑 Entry Plan vs Pro Plan

 * **PHP Compatibility Check**
    $1 Plan: WP Admin Results up to PHP 8.5 Pro Plan:
   Detailed compatibility insights in Portal Dashboard
 * **Database Compatibility Check**
    $1 Plan: Basic DB version detection in WP Admin
   Pro Plan: Full upgrade readiness insights + risk analysis + recommendations
 * **Vulnerability Summary**
    $1 Plan: Not available Pro Plan: Available in Portal
 * **Email Notifications**
    $1 Plan: Not available Pro Plan: Available
 * **Portal Dashboard**
    $1 Plan: Not available Pro Plan: Full access (compatibility
   + vulnerabilities + detailed summaries + site overview)
 * **Custom/Premium Plugins ZIP Scanning**
    $1 Plan: Not available Pro Plan: Supported
   via Portal ZIP uploader

## Screenshots

 * [[
 * The main plugin interface with scan results.
 * [[
 * Example of plugins listed after rescan.
 * [[
 * Fetching the latest results from the Portal.
 * [[
 * Viewing detailed compatibility and vulnerabilities (Portal).
 * [[

## Installation

 1. Upload `plugin-compatibility-checker` to the `/wp-content/plugins/` directory.
 2. Activate the plugin through the **Plugins** menu in WordPress.
 3. Subscribe inside the Portal ($1/month) and enter your license key to unlock compatibility
    up to PHP 8.5 and database checks.
 4. (Optional) Upgrade to Pro to enable Portal Dashboard and advanced features.

## FAQ

### What happens if I don’t activate a license?

You must subscribe to the $1/month entry plan and activate your license to see compatibility
results. Without license activation, visibility will be limited. Pro unlocks dashboard
analytics, notifications and vulnerability insights.

### Why is database compatibility important?

Starting with WordPress 7.0, database requirements are stricter (MySQL 8.0+ / MariaDB
10.6+). If your hosting is outdated, your site may not receive updates.

### Will my site break if database is outdated?

Not immediately, but your site may stop receiving future WordPress updates, which
can lead to security risks.

### Why does a plugin show “No Data”?

This usually means the plugin is either custom/premium or its version has been removed
from WordPress.org.

### Do I need to rescan after adding new plugins?

Yes, please click **Rescan** to include new plugins in the compatibility check.

## Reviews

![](https://secure.gravatar.com/avatar/8bd4e79668f5f69667a9137234e85f3db61edd86f74ee33cf555803c07563355?
s=60&d=retro&r=g)

### 󠀁[Actually prevented a break on upgrade](https://wordpress.org/support/topic/actually-prevented-a-break-on-upgrade/)󠁿

 [rubigma](https://profiles.wordpress.org/rubigma/) 4 Қараша, 2025

The free version gave me a basic idea, but the paid version was way more useful.
It caught PHP issues that I wouldn’t have noticed before updating. Glad I upgraded
because it saved me time fixing errors later. Definitely more helpful when running
sites on newer PHP versions.

![](https://secure.gravatar.com/avatar/8a365777f633b25bcfe62b43cf5500a59e400860a3a05b37edd00711d3c868fa?
s=60&d=retro&r=g)

### 󠀁[Not useful without $20/month subscription](https://wordpress.org/support/topic/not-useful-without-20-month-subscription/)󠁿

 [bhammondCVL](https://profiles.wordpress.org/bhammondcvl/) 3 Қараша, 2025

The plugin will only check major-version compatibility (6, 7, 8) without paying 
$20/month for a service subscription. If you want to try that, go for it. The free
version, though, will not tell you much that is useful.

![](https://secure.gravatar.com/avatar/9786181f2ac82df1c2b05de1899533eadab7a16b5e6f7462d0c11f6abe6af6bd?
s=60&d=retro&r=g)

### 󠀁[A joke ?](https://wordpress.org/support/topic/a-joke-10/)󠁿

 [Li-An](https://profiles.wordpress.org/li-an/) 2 Қараша, 2025 2 replies

The plugin checks in free version up to php 8.0+ compatibility. Who needs to know
if a plugin is compatible with an obsolete version of php ?

![](https://secure.gravatar.com/avatar/6d709c9cc7e83609fe6ca6dbe987abf615cd7e64320ab4dacb43ad7cf2104c6a?
s=60&d=retro&r=g)

### 󠀁[Plugin Compatibility Checker is Awesome!](https://wordpress.org/support/topic/plugin-compatibility-checker-is-awesome/)󠁿

 [q120000](https://profiles.wordpress.org/q120000/) 17 июля, 2025

PCC is very convenient when deciding to update Wordpress and PHP versions. With 
one click of the mouse it will provide helpful information letting you know ahead
of time which plugins might cause issues of compatibility. And is especially helpful
with Multisite installations that have several plugins being used with various sub-
sites. Thank you Dinesh.

![](https://secure.gravatar.com/avatar/bac59389160bc7d91df69416100276f64b7a6976afd8dc25435506ea9ac4e63a?
s=60&d=retro&r=g)

### 󠀁[5 stars for great tool](https://wordpress.org/support/topic/5-stars-for-great-tool/)󠁿

 [Jarko Piironen](https://profiles.wordpress.org/ipajen/) 16 апреля, 2023

The plugin is a great tool I use for new clients to get an overview of versions 
of the installed plugins, supported WordPress versions and PHP versions before upgrading
a site. Saves me time. Thanks! Easy worth 5-stars.

![](https://secure.gravatar.com/avatar/b4132f06eb754bb0ea86bbdf340b059ca42d22c22078e6ae55533471a1d3db31?
s=60&d=retro&r=g)

### 󠀁[Looks a very good start](https://wordpress.org/support/topic/looks-a-very-good-start/)󠁿

 [ecollart](https://profiles.wordpress.org/ecollart/) 7 Қаңтар, 2022

Hello, I like the concept of using a specific page and would use your plugin if 
it can also display PHP version supported by the plugins. It is an info you can 
find for individual plugin in WordPress.org repository but would be nice to have
that for all plugins at once ! Eric Collart

 [ Read all 8 reviews ](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/)

## Contributors & Developers

“Plugin Compatibility Checker” is open source software. The following people have
contributed to this plugin.

Contributors

 *   [ compatshield ](https://profiles.wordpress.org/compatshield/)

“Plugin Compatibility Checker” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/plugin-compatibility-checker/contributors)
for their contributions.

[Translate “Plugin Compatibility Checker” into your language.](https://translate.wordpress.org/projects/wp-plugins/plugin-compatibility-checker)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/plugin-compatibility-checker/),
check out the [SVN repository](https://plugins.svn.wordpress.org/plugin-compatibility-checker/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/plugin-compatibility-checker/)
by [RSS](https://plugins.trac.wordpress.org/log/plugin-compatibility-checker/?limit=100&mode=stop_on_copy&format=rss).

## Meta

 *  Version **7.0.6**
 *  Last updated **4 недели ago**
 *  Active installations **8 000+**
 *  WordPress version ** 5.0 or higher **
 *  Tested up to **7.0**
 *  PHP version ** 7.2 or higher **
 *  Languages
 * [English (US)](https://wordpress.org/plugins/plugin-compatibility-checker/) и
   [Portuguese (Brazil)](https://br.wordpress.org/plugins/plugin-compatibility-checker/).
 *  [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/plugin-compatibility-checker)
 * Tags
 * [compatibility](https://kk.wordpress.org/plugins/tags/compatibility/)[mariadb](https://kk.wordpress.org/plugins/tags/mariadb/)
   [php version](https://kk.wordpress.org/plugins/tags/php-version/)[plugin checker](https://kk.wordpress.org/plugins/tags/plugin-checker/)
 *  [Advanced View](https://kk.wordpress.org/plugins/plugin-compatibility-checker/advanced/)

## Ratings

 3.8 out of 5 stars.

 *  [  4 5-star reviews     ](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/?filter=5)
 *  [  1 4-star review     ](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/?filter=4)
 *  [  1 3-star review     ](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/?filter=3)
 *  [  1 2-star review     ](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/?filter=2)
 *  [  1 1-star review     ](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/plugin-compatibility-checker/reviews/)

## Contributors

 *   [ compatshield ](https://profiles.wordpress.org/compatshield/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/plugin-compatibility-checker/)