Performance Lab
Performance plugin from the WordPress Performance Team, which is a collection of standalone performance features.
4.3(50 reviews)
·200K+ active installs·Updated 1 month agoAs of April 2026, Performance Lab is a WordPress diagnostics plugin with 200K+ active installations and a 4.3/5 rating from 50 reviews. It has been downloaded 3.5M+ times in total. Requires WordPress 6.6+ and PHP 7.2+. Available on WordPress.org since 2022. Recently updated within the last 3 months. Downloads are down 8% this week. Top alternative: Multisite Usage Scanner.
4.3/550 reviews
200K+active installs
3.5M+total downloads
4 yearssince 2022
Overview
The Performance Lab plugin is a collection of features focused on enhancing the performance of your site, most of which should eventually be merged into WordPress core. The plugin facilitates the discovery and activation of the individual performance feature plugins which the performance team is developing. In this way you can test the features to get their benefits before they become available in WordPress core. You can also play an important role by providing feedback to further improve the solutions.
The feature plugins which are currently featured by this plugin are:
- Embed Optimizer
- Enhanced Responsive Images
- Image Placeholders
- Image Prioritizer
- Instant Back/Forward
- Modern Image Formats
- Optimization Detective (dependency for Embed Optimizer and Image Prioritizer)
- Performant Translati…
Ratings & Reviews
4.350 reviews
5 ★
38
4 ★
2
3 ★
3
2 ★
0
1 ★
7
Recent Reviews
great for testing, idk how great for production
by Eduard Doloc·3 weeks ago·4 replies
been using a few of the plugins and metrics for testing and scaling, been using some of the plugins noted there on some production sites, but I do advise on never installing the plugins that require optimization detective.
let’s hope they make it to core fast!
Good performance improvements but needs polishing
by hunain8·1 month ago
I have tested this plugin on a few sites and it provides some useful performance features that are helpful for optimization and experimentation. The modular approach is nice and makes it easy to enable or disable specific options. However, the interface and documentation could be improved for better clarity, especially for non-technical users. Overall, it’s a solid plugin with potential, but still needs refinement for a smoother production workflow.
Essential for modern WP sites! Now 100% translated into Persian
by Afshari·2 months ago
Performance Lab is the gateway to the future of WordPress. These tools are crucial for anyone serious about site speed, Core Web Vitals, and modern image formats.
I have personally translated and reviewed 100% of the strings for the entire Performance Lab ecosystem, including all standalone plugins (WebP Uploads, Speculation Rules, View Transitions, etc.) and their respective Readme files.
As the PTE (Translation Editor), I’ve ensured that complex technical terms are translated accurately to help the Persian WordPress community implement these performance enhancements with ease.
Kudos to the performance team for these high-quality tools!
Best regards, @saeidafshari
دوستان و توسعهدهندگان گرامی، مجموعه افزونههای رسمی تیم کارایی وردپرس، شامل ۱۲ ابزار تخصصی برای افزایش سرعت و بهینهسازی سایت، به صورت ۱۰۰٪ فارسیسازی و بازبینی شد. تمام مفاهیم مدرن مثل قوانین پیشبینی مرورگر و بهینهسازی تصاویر به دقت معادلسازی شدهاند تا بتوانید بدون ابهام فنی، از آخرین تکنولوژیهای جهانی در سایتهای ایرانی استفاده کنید.
با احترام، سعید افشاری
Good plugin
by sharuznau·3 months ago
great app thx
Plugin UI could have been improved 🤕
by akehsanz·4 months ago·2 replies
Where’s lthe dev team🫵🏼
Plugin UI could have been improved..
Download Trends
Today: 981Yesterday: 1KThis week: 8KPeriod total: 747K
Compatibility
| WordPress | 6.6+ requiredTested up to 7.0 |
| PHP | 7.2+ required |
Version Adoption
v4.1
46.0%
v4.0
26.4%
Other
15.7%
v3.9
12.0%
Top Alternatives to Performance Lab
Frequently Asked Questions
Changelog
View full changelog on WordPress.org
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.