Performance Lab
by WordPress Performance Team · WordPress.org page · Website
Performance Lab has 100,000+ active installs on WordPress.org and 3,700,359 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on August 26, 2026, tested up to WordPress 7.1.
Performance Lab at a glance
Is Performance Lab well maintained?
Features
The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.
- 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 Translations
- Speculative Loading
- View Transitions (experimental)
Performance Lab reviews and ratings
51 reviews on WordPress.org, with the most recent ones as their authors posted them.
51 reviews
- 5★
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39
- 4★
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2
- 3★
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3
- 2★
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0
- 1★
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7
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Must have on wordpress site.
This plugin is a must have on the live website. The performance improvement is very much noticeable.
dev2webtheoria -
great for testing, idk how great for production
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!
Eduard Doloc -
Good performance improvements but needs polishing
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.
hunain8 -
Essential for modern WP sites! Now 100% translated into Persian
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
Afshari -
Good plugin
great app thx
sharuznau -
Plugin UI could have been improved 🤕
Where's lthe dev team🫵🏼 Plugin UI could have been improved..
akehsanz
Performance Lab alternatives
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Details
Performance plugin from the WordPress Performance Team, which is a collection of standalone performance features.
The full description, screenshots and every review live on the WordPress.org page.
Tags
- diagnostics
- measurement
- optimization
- performance
- site health
More from WordPress Performance Team
-
Modern Image Formats 100,000+ installs -
Speculative Loading 70,000+ installs -
Image Placeholders 60,000+ installs -
Optimization Detective 60,000+ installs
- Version
- 4.2.0
- Last updated
- Aug 26, 2026
- First published
- Mar 7, 2022
- Requires WordPress
- 6.9
- Tested up to
- 7.1
- Requires PHP
- 7.4
- Pricing
- Free, community plugin
Performance Lab FAQ
What does Performance Lab do?
According to its WordPress.org readme, Performance Lab offers Embed Optimizer, Enhanced Responsive Images, Image Placeholders, Image Prioritizer and Instant Back/Forward.
How many active installs does Performance Lab have?
WordPress.org reports 100,000+ active installs for Performance Lab as of September 7, 2026.
Is Performance Lab still maintained?
Yes. The last release was on August 26, 2026 and it is tested up to WordPress 7.1.
Is Performance Lab free?
Performance Lab is free and listed as a community plugin on WordPress.org, with no commercial upgrade.