by SiteGround 4.2 (640 reviews)

Speed Optimizer - The All-In-One Performance-Boosting Plugin

Name: Speed Optimizer - The All-In-One Performance-Boosting Plugin
Rating: 4.2 (640 reviews)
Author: SiteGround

Boost your website performance and page speed, and increase conversions with powerful caching, frontend, media, and environment optimizations.

Speed Optimizer ranks #44 among WordPress.org plugins with 1,000,000+ active installations, is #4 of 1,584 in the Performance category, a 4.2/5 rating from 640 reviews, and was last updated Oct 7, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v7.8.4 Current Version v7.8.4

Updated 1 day ago Last Update on 07 Oct, 2026

Refreshed 7 hours ago Last Refreshed on

#4 of 1,584 in Performance Top 1% by installs Downloads +441.2% this week Actively maintained

View on WordPress.org

Rank

#44

-1 this week

Active Installs

1M+

-38.7%

KW Avg Position

— No change

Downloads

95.5M

+64,911 today

Support Resolved

70%

— No change

Rating

84%

Review 4.2 out of 5

4.2 (640 reviews)

Next Milestone 2M

Total Progress 61.5%

1M+ 2M+

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

Unlock Exact Install Count

See the precise estimated active installs for this plugin, calculated from real-time ranking data.

Exact install estimates within tiers
Track install growth over time
Milestone progress predictions

Upgrade to Pro

Need 384,616 more installs to reach 2M+

Rank Changes

Current #44

Change

Best #

Upgrade to Pro

Unlock 30-day and 90-day rank history charts with a Pro subscription.

Upgrade Now

Active Installs Growth

Upgrade to Pro

Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

Upgrade to Pro

Unlock 30-day, 90-day, and yearly download history charts with a Pro subscription.

Upgrade Now

Reviews & Ratings

4.2

640 reviews

Overall 84%

462 (72%)

26 (4%)

34 (5%)

27 (4%)

91 (14%)

Support Threads Overview

Resolved

Unresolved

Total Threads

Resolved

Unresolved

70%

Resolution Rate

Security History

Source: WPVulnerability

6 known vulnerabilities on record · 2 in the last 24 months · checked 3 days ago

Apr 27, 2026

Speed Optimizer – The All-In-One Performance-Boosting Plugin [sg-cachepress] < 7.7.9

CVE-2026-3220 · Fixed in v7.7.9
Oct 16, 2024

Speed Optimizer – The All-In-One Performance-Boosting Plugin [sg-cachepress] < 5.0.13

CVE-2019-25217 · Fixed in v5.0.13
Apr 15, 2024

Speed Optimizer – The All-In-One Performance-Boosting Plugin [sg-cachepress] < 7.5.0

CVE-2024-32532 · Fixed in v7.5.0
Apr 15, 2024

Speed Optimizer – The All-In-One Performance-Boosting Plugin [sg-cachepress] < 7.8.1

CVE-2026-15421 · Fixed in v7.8.1
Mar 14, 2019

Speed Optimizer – The All-In-One Performance-Boosting Plugin [sg-cachepress] < 5.0.13

CVE-2019-25217 · Fixed in v5.0.13
Speed Optimizer – The All-In-One Performance-Boosting Plugin [sg-cachepress] < 5.0.13

Fixed in v5.0.13

Track This Plugin

Get detailed analytics, keyword tracking, and position alerts delivered to your inbox.

Start Tracking Free

Plugin Details

Version: 7.8.4
Last Updated: Oct 07, 2026
Requires WP: 5.5.1+
Tested Up To: 7.1
PHP Version: 7.0 or higher
Author: SiteGround

Support & Rating

Rating: ★ ★ ★ ★ ☆ 4.2
Reviews: 640
Support Threads: 10
Resolved: 70%

Keywords

SiteGround caching nginx performance speed

Upgrade to Pro

Unlock keyword rankings, search positions, and detailed analytics with a Pro subscription.

Upgrade Now

Similar Plugins

Adminify – White Label, Admin Menu Editor, Login Customizer

6K+ installs

#2,748

Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits

Wordfence Security - Firewall, Malware Scan, and Login Security

WP Fastest Cache - WordPress Cache Plugin

1M+ installs

#47

WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance

View all Performance plugins

TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners who want to improve their site's performance without technical expertise. It solves slow load times and poor Core Web Vitals through caching, code minification, image compression, and environment optimizations.

Dynamic Caching
File-based caching
Memcached object caching
Minify JS, HTML and CSS
Image compression and WebP conversion
Lazy Load Media
Heartbeat Control
Speed Test tool

Frequently Asked Questions

Common questions about Speed Optimizer - The All-In-One Performance-Boosting Plugin

Speed Optimizer - The All-In-One Performance-Boosting Plugin has 1,000,000+ active installations on the WordPress.org plugin directory.

Speed Optimizer - The All-In-One Performance-Boosting Plugin holds a 4.2 out of 5 star rating based on 640 user reviews on WordPress.org.

Speed Optimizer - The All-In-One Performance-Boosting Plugin is developed by SiteGround and published on the official WordPress.org plugin repository.

Speed Optimizer - The All-In-One Performance-Boosting Plugin requires WordPress 5.5.1 or higher, is tested up to WordPress 7.1 and needs PHP 7.0 or newer.

Speed Optimizer - The All-In-One Performance-Boosting Plugin has been downloaded 95,502,504+ times from WordPress.org.

The latest version of Speed Optimizer - The All-In-One Performance-Boosting Plugin is 7.8.4. It was last updated on October 7, 2026.

Yes. Speed Optimizer - The All-In-One Performance-Boosting Plugin is a free WordPress plugin available to download and install from the WordPress.org plugin directory.