Speed Optimizer – The All-In-One Performance-Boosting Plugin
Boost your website performance and page speed, and increase conversions with powerful caching, frontend, media, and environment optimizations.
4.2(630 reviews)
·1.0M+ active installs·Updated 1 month agoAs of April 2026, Speed Optimizer is a WordPress nginx plugin with 1.0M+ active installations and a 4.2/5 rating from 630 reviews. It has been downloaded 95M+ times in total. Requires WordPress 4.7+ and PHP 7.0+. Available on WordPress.org since 2014. Recently updated within the last 3 months. Download volume is stable this week. Support resolution rate: 68%. Top alternative: Nginx Helper.
4.2/5630 reviews
1.0M+active installs
68%resolved
12 yearssince 2014
Overview
The award-winning Speed Optimizer plugin is a free WordPress performance-boosting solution to improve user experience, increase conversion rates and drive more traffic. Achieve better SEO rankings, improve Core Web Vitals and enhance your Google Page Speed Score.
Developed by the WordPress speed experts at SiteGround, our free plugin is actively used and trusted by more than 2 million website owners. It’s specially designed to be easy to use, allowing users of all skill levels to make complex speed optimizations, such as minifying HTML, CSS and JavaScript, image compression and lazy loading, in a few clicks.
Install our caching plugin now to dramatically improve your WordPress website performance on any hosting platform.
Essential Speed-boosting Features:
- Powerful Caching for up to 20% f…
Screenshots
Ratings & Reviews
4.2630 reviews
5 ★
456
4 ★
26
3 ★
33
2 ★
27
1 ★
88
Recent Reviews
Memcached only available inside commercial environment
by Tassoman·Yesterday·1 reply
A quite disappointing open source contribution
Needs to be better
by danmcf·3 days ago·1 reply
This is a good plugin and very helpful, but there are two big downsides:
- A disrespectful popup that asks you to give them all of your personal data. This is nothing new, but there are no cookies attached to it, meaning that you will see this message every single time you use the plugin. A lot of people will just accept the terms to pass all of their data over just to stop seeing the stupid message.
- No YouTube support.
Nice Speed Improvement
by kearra69·3 weeks ago
Started using it to optimize my site. Speed got better after turning on some settings. The interface is simple & easy to understand. Still a few things to tweak, but overall pretty helpful. Tnkz devs.
Nice Speed Boost
by quinn20·3 weeks ago·1 reply
Tried Speed Optimizer on one of my sites. Setup was pretty easy & it improved load time a bit, which was nice. The interface is clear too. Few settings took time to understand tho, but overall it works well 👍
Poor
by ivankmx·1 month ago·1 reply
This plugin is light years behind others like WP Rocket or Litespeed Cache. It doesn’t improve on them in any way, absolutely nothing.
Download Trends
Today: 4KYesterday: 4KThis week: 28KPeriod total: 6.7M
Compatibility
| WordPress | 4.7+ requiredTested up to 6.9.4 |
| PHP | 7.0+ required |
Version Adoption
v7.7
93.6%
Other
6.4%
Top Alternatives to Speed Optimizer – The All-In-One…
Frequently Asked Questions
Changelog
Version 7.7.7
Release Date: Feb 16th, 2026
- Version bump
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.