WPThumbs
Themes Plugins By purpose By industry Best-of lists Fix it guides
Premium Plugin v3.3.4

WP Speed of Light

WordPress Speed Optimization Plugin

WP Speed of Light 3.3.4 – WordPress Speed Optimization Plugin

The facts

Last updated
26 Feb 2026
Added
Feb 2026

Our analysis

AI-assisted

WP Speed of Light is a WordPress plugin aimed at enhancing website performance by improving loading times. It utilises a static caching system and offers various optimization tools, including resource grouping, minification, and database cleanup. This plugin is suitable for website owners looking to speed up their sites and improve user experience across different devices.

The plugin features GZIP compression, browser caching support, and the ability to disable certain WordPress features. It also provides performance metrics to help you monitor the effectiveness of the optimisations made.

Best for: Website owners seeking to enhance loading speeds and performance metrics.

What it does well

  • Static file caching system
  • GZIP data compression
  • Resource minification for HTML, CSS, and JS
  • Dedicated mobile cache for different devices
  • Performance metrics tracking

Where it falls short

  • No published rating or adoption statistics
  • Limited information on user experience or support

Verdict

WP Speed of Light offers a range of features for performance optimisation, though details on user feedback and adoption are lacking.

Full overview of WP Speed of Light

WP Speed of Light is a powerful and user-friendly WordPress performance plugin designed to improve website loading times for all users. It features a robust static caching system along with advanced optimization tools such as resource grouping, minification, database cleanup, .htaccess optimization, and automatic cache clearing.

WP speed of Light Plugin Features

  • Static file caching system

  • GZIP data compression

  • Browser caching support

  • Grouping of plugin files: CSS, JS, local fonts, Google Fonts

  • Resource minification: HTML, CSS, and JS

  • Dedicated mobile cache per device

  • Remove query strings from static resources

  • Cache external scripts

  • Option to disable WordPress features like REST API, RSS feeds, Gravatar, and Emojis

  • Automatic cache cleaning: by interval, on content save, or by user group

  • Performance metrics including:

    • First loading time

    • Second loading time

    • First byte time

    • Time to start rendering

    • Percentage of elements served from cache

    • Percentage of elements compressed with GZIP

    • Percentage of compressed images

    Automatically serve optimized cache for all devices (desktop, tablet, mobile)

    Dedicated cache for mobile devices

    Dedicated cache for tablets

    Option to disable cache for specific devices

    Download WP Speed of Light Plugin

    If you experience issues with the free version of WP Speed of Light Plugin, try disabling your ad blocker or switching to another web browser. If the issue continues, please contact support for assistance.

Tagged as

Alternatives

Other plugins for making sites fast.

WP-Optimize

Get caching and more with this powerful cache plugin. Cache, optimize images, clean your database and minify f...

Free 1M+ installs 4.8★ (2,606)
LiteSpeed Cache

All-in-one unbeatable acceleration & PageSpeed improvement: caching, image/CSS/JS optimization...

Free 7M+ installs 4.8★ (2,764)
EWWW Image Optimizer

Comprehensive image optimization with WebP, AVIF, Lazy Load, and more. Optimize images automatically for Faste...

Free 1M+ installs 4.8★ (1,838)
Under Construction

Easy to use Under Construction Page & Coming Soon Page. Enable Under Construction Mode in seconds & sh...

Free 600k+ installs 4.8★ (1,285)
Smush

Smush

93

Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global im...

Free 1M+ installs 4.8★ (6,051)
Converter for Media

Speed up your website by using our WebP & AVIF Converter. Optimize images and serve WebP and AVIF images i...

Free 500k+ installs 4.9★ (1,097)