About Performance Lab

The Performance Lab plugin is a collection of “feature projects” for WordPress coreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress. that aim to improve performance in WordPress. These projects (known as “modules” in the pluginPlugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party) are intended to eventually be merged into WordPress core. As such, Performance Lab is considered a betaBeta A pre-release of software that is given out to a large group of users to trial under real conditions. Beta versions have gone through alpha testing in-house and are generally fairly close in look, feel and function to the final product; however, design changes often occur as part of the process. testing plugin.

Performance Lab is the primary project of the WordPress Core Performance Team, which was established in 2021 and is dedicated to monitoring, enhancing, and promoting performance in WordPress core and its surrounding ecosystem. For more details about the Team and its work, check out the Core Performance Handbook.

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Early Access Program

As a hosting platform or site developer, you’re in a unique position to significantly influence and contribute to upcoming performance improvements to WordPress by joining our Early Access Program. Since the WordPress Performance Team is developing features in Performance Lab which will ultimately launch in core, testing features through this plugin provides the latest performance improvements for WordPress for your sites at scale. Additionally, through your testing, your feedback will influence features which will become a part of WordPress.

Would you or your company like to test new modules in the Performance Lab plugin? Contact our Team Reps to indicate your interest in the Performance Lab plugin to receive notification about upcoming modules, access for early testing, and implementation guidance from our developers for the performance modules

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Our Contributors

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If your company is interested in contributing or are already contributing but not listed below, please reach out to our Team Reps.

The following companies have participated in the work of the Performance Team by committing personnel and contribution hours to the work of Core Performance Team, including the Performance Lab plugin:

(listed in alphabetical order)





The following companies have participated in the work of the Performance Team by taking part in the Performance Lab Early Access Program (EAP) and conducting beta testing of the Performance Lab plugin:


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Individual contributors participate in the work of the Performance Team in a variety of ways, from contributing code to participating in weekly chat discussion to providing translations for the Performance Lab plugin.

A full list of individual code contributors is available in GitHub here.

Check out the Get Involved section of the Core Performance Handbook for details on how to become an individual contributor.