System Requirements Check
Checks for the specified version of the operating systems, web browsers, screen resolution, IP address, Flash Player, JRE, cookie, and Javascript.
Use with caution
System Requirements Check works, but test it on a staging site before relying on it in 2026. It runs on 40+ sites, is rated 4.5/5 and was last updated 4 months ago, and scores 51/100 on our health check.
- Small user base (40+ active installs)
- Very few reviews so far
- Only tested up to WordPress 6.9 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where System Requirements Check stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| check | #37 |
| requirements | #5 |
| system | #71 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 4.5 from 2 reviews
About System Requirements Check
From the official readme · v1.2.4Description
⚠️ IMPORTANT NOTICE: THIS PLUGIN IS NO LONGER MAINTAINED ⚠️
Active development and support for System Requirements Check have officially ended.
- Why? The technical environment has evolved, making this plugin antiquated. Web standards have moved away from client-side technologies like Adobe Flash Player and Java Runtime Environment (JRE), which this plugin was originally designed to check. Modern web browsers and WordPress core now handle environment baseline checks natively, rendering this specific client-side check obsolete.
- Closing Date: This plugin will be officially closed to new downloads on the WordPress.org repository on December 31, 2026.
- What this means: No new features, bug fixes, or security patches will be released. The plugin is provided “as-is.” Existing installations will continue to function but will receive no further compatibility updates.
- Support: The support forums will no longer be monitored.
Thank you to everyone who supported this project over the years!
A system requirements plugin that checks for the specified version of the operating systems, web browsers, screen resolution, IP addresses, Adobe Flash Player, Java Runtime Environment (JRE), Cookie, and Javascript on the client’s system. The result can be displayed on a post or page with the use of a shortcode to let the end-users be aware that their system may not be optimal for specific tasks or operations.
Installation
Automatically in WordPress
- Login into your site’s dashboard
- Click Plugins on the left menu (administration role required)
- Click Add New
- Search for the “System Requirements Check” plugin
- Click Install Now and select OK
- Activate the plugin
Manual installation
- Download the plugin file to your computer and unzip it
- Using an FTP program, or your hosting control panel, upload the unzipped plugin folder to your WordPress installation’s
wp-content/plugins/directory. - Activate the plugin from the Plugins menu within the WordPress admin.
Frequently asked questions
What is the purpose of this plugin?
This plugin checks the client’s operating system, web browser, screen resolution, IP addresses, Adobe Flash Player, cookie, Java Runtime Environment, and JavaScript to see if the client’s system meets your requirements that were set in the System Requirements Check settings page.
What is the shortcode and where it is?
The shortcode is [system_requirements_check]. It is on top of the plugin’s Settings page.
Changelog
1.2.4
- Now display the specified Microsoft Edge version number in the small print for browser check.
1.2.3
- Fixed an issue where Microsoft Edge is identified as Google Chrome.
- Minor fixes and updates
1.2.2
- Updated screenshots and licensing info.
1.2.1
- Added plugin shortcode to the installation section on the readme.txt
- Made plugin shortcode text on top of the Settings page extra large
- Fixed the issue where the plugin thinks Chrome on iOS is Safari. Thanks to @laggedonuser for reporting and providing a fix.
1.2.0
- Updated existing icons
- Added more icons
- Added an option to disable web browsers check
- Added the option to display IP address
- Added the option to display and check the screen resolution
- Updated grammars and rephrased some sentences
- Fixed an issue where Safari version check is incorrect
- Rephrased Java check messages
1.1.2
- Updated links
- Fixed Linux label
- Set Linux check to off by default
- Added an option to disable all operating systems check
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best System Requirements Check alternatives
All check plugins →
FAQ
System Requirements Check: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 2, 2026
Is System Requirements Check free?
Yes. System Requirements Check is free to download and use from the official WordPress.org plugin directory.
Is System Requirements Check safe to use in 2026?
System Requirements Check works, but test it on a staging site before relying on it in 2026. It runs on 40+ sites, is rated 4.5/5 and was last updated 4 months ago, and scores 51/100 on our health check.
How many websites use System Requirements Check?
System Requirements Check is active on 40+ WordPress websites and has been downloaded 6,908 times since it launched in March 2014. It was downloaded 61 times in the last 30 days.
Does System Requirements Check work with WordPress 7.1?
System Requirements Check is officially tested up to WordPress 6.9.9, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does System Requirements Check need?
System Requirements Check requires PHP 7.0 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was System Requirements Check last updated?
The latest version, 1.2.4, was released on May 28, 2026 (4 months ago).
Who makes System Requirements Check?
System Requirements Check is developed and maintained by Ethan Lin.
What are the best alternatives to System Requirements Check?
The most popular alternatives to System Requirements Check are WP-Cron Status Checker (5K+ installs), Cron Setup and Monitor (1K+ installs) and Email Test (1K+ installs).
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