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Seraphinite Accelerator icon
Actively maintained Tested with WP 7.1 #742 most installed plugin #15 in cache

Seraphinite Accelerator

Turns on site high speed to be attractive for people and search engines.

Active installs50K+50K+ tier
Downloads · 30d16K▲ +21.4% vs prev. 30d
Rating4.8/5476 reviews
Health score79/100Good
All-time downloads912.9KSince May 2021
Support resolved0 / 20% in last 2 months
RequiresWP 4.5PHP 7.1+
Overall rank#742of 69,475 plugins
Our verdict

Solid choice

Seraphinite Accelerator is a solid plugin choice in 2026, with a few things worth checking first. It runs on 50K+ sites, is rated 4.8/5 and was last updated 1 week ago, and scores 79/100 on our health check.

  • Proven at scale on 50K+ active sites
  • Loved by users — 4.8/5 from 476 reviews
  • Actively developed — last update 1 week ago
  • Tested with the latest WordPress (7.1)
  • Momentum — downloads up 21.4% vs the previous 30 days

How does it stack up?

Side-by-side on installs, updates, ratings & support

Daily downloads

5911.2K1.8KJun 28Aug 11Sep 25
Yesterday235
Daily average (1y)559
Peak day2,366Jul 18, 2026
Last 12 months203.4K

Download spikes usually follow a new release — each site that auto-updates counts as a download.

Rankings

Where Seraphinite Accelerator stands today
Overall popularity #742 of 69,475 WordPress.org plugins Top 1%
50K+ installs tier 276 of 324
Next tier: 100K+ installs
Cache #15 of 437 plugins → Optimize #12 of 157 plugins → Pagespeed #10 of 104 plugins → Performance #34 of 974 plugins → Speed up #1 of 10 plugins →

WordPress.org search rankings

Live position in the plugin search, top 100
KeywordPositionCompeting pluginsCategory
cache >100 8,489 Best cache plugins →
Optimize #74 3,150 Best Optimize plugins →
pagespeed #27 592 Best pagespeed plugins →
performance >100 10,000 Best performance plugins →
speed up #28 3,660 Best speed up plugins →

Version adoption

Share of active sites per release.

  • 2.2954.8%
  • 2.2721.0%
  • 2.2811.4%
  • Other12.8%

Rating breakdown

★★★★★★★★★★ 4.8 from 476 reviews

  • 5★93.3%
  • 4★1.5%
  • 3★0.60%
  • 2★1.1%
  • 1★3.6%

About Seraphinite Accelerator

From the official readme · v2.29.26

Description

Turns on site high speed to be attractive for people and search engines. See more how to use it.

TO USE FREE ADDITIONAL FEATURES PLEASE INSTALL THE FREE EXTENDED PLUGIN VERSION BY FOLLOWING ONSCREEN PLUGIN’S INSTRUCTIONS.

We kindly ask you to post reviews to share experience about your site speed – it helps improving the plugin.

Features

  • Fastest cache engine
    A high-performance file cache engine works as fast as possible on your site.
  • High load tolerance
    Cache revalidation uses minimum resources.
  • Security
    User cached sessions are protected from brute force attacks.
  • Optimization plugins compatibility
    Many 3rd party optimization plugins can be used.
  • Various range of encoding
    GZip, Deflate, Compress, Brotli, Uncompressed are supported.
  • Cache data compression
    Decreases storage data occupation.
  • Browser cache
    Leverage browser caching via .htaccess to reduce server load.
  • Caching separation
    Data is different for various devices and environments.
  • No site registration and quoting
    There is no any site registration and no time or page count quota.

Free additional features

  • Multiple CDN
    Rearrange balance on multiple CDNs to be faster and decrease costs.
  • Lazy revalidation
    Pages speed is always highest even while content updating.
  • Cache storage space optimization
    The same parts are stored uniquely, which significantly saves space.
  • Users cache
    Smart caching of user’ dependent pages like shop cart, online courses, etc.
  • HTML error-correcting and checking
    Managing unescaped scripts, misplaced and lost tags.
  • Content size optimization
    Minification of Java-scripts, styles (CSS), HTML.
  • Media load optimization
    Lazy loading of images, video, frames, fonts.
  • Scripts load optimization
    Java-scripts and styles (CSS) lazy loading, inlining, and deferring.

Premium features

  • Remote optimization
    Optimization can be performed remotely on our cloud servers. Includes CPU seconds: 1000/hour, 10000/day and 300000/month.
  • No page views limits
    There is no limit of 5000 page views per month. In free version after reaching that limit the product will just cache pages without optimization.
  • No banner
    There is no banner at the bottom of the site.
  • No promotions
    No promotions of other related plugins.
  • Support
    Personal prioritized support (3 hour per site). Additional support is for 30 EUR per hour. All issues due to product are always fixed for free.

More details.

Requirements

  • WordPress 4.5 or higher.
  • PHP 7.1 or higher.
  • Browser (Google Chrome, Firefox, IE).

Compatibility

Installation

  1. Choose the plugin from the WordPress repository, or choose the plugin’s archive file in ‘Upload Plugin’ section in WordPress ‘Plugins\Add New’, or upload and extract the plugin archive to the ‘/wp-content/plugins’ directory manually.
  2. Activate the plugin through the ‘Plugins’ screen in WordPress.
  3. It will appear in the admin UI as shown in the screenshots.

Changelog

2.29.26

Improvements:

  • CloudFlare E-mail decoding for lazy HTML.

2.29.25

Improvements:

  • CloudFlare E-mail decoding for lazy HTML.
  • GEO location: Support for ‘Cf-Connecting-IP’.
  • HTML markup checker.
  • Hidden enabling of object cache is disallowed.

2.29.24

Improvements:

  • Allowing set 0 TTL in ‘Allow cache with time to live’.

Fixes:

  • PHP 8 error on ‘firstUseTimeStamp’ field if it is not numeric.

2.29.23

Improvements:

  • Support for Image Carousel Widget of Elementor.

Fixes:

  • Raster images are interpreted as SVG if they contain SVG tags.

2.29.22

Improvements:

  • Dropping server/cloud cache immediately after post changing if lazy revalidation id disabled.
  • Independence of temporary cache from lazy revalidation.

2.29.21

Fixes:

  • Unable to revalidate cache if the site root contains uppercase characters.

Full changelog on WordPress.org →

Screenshots

Status and operations.
Status and operations.
Settings.
Settings.
Settings - Cache.
Settings - Cache.
Settings - Revalidation.
Settings - Revalidation.
Settings - Browser cache.
Settings - Browser cache.
Settings - Server and cloud.
Settings - Server and cloud.
Settings - Exclusions.
Settings - Exclusions.
Settings - Different views cache.
Settings - Different views cache.
Settings - Users.
Settings - Users.

For developers

Is this your plugin? Show off the numbers.

Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.

Active installs badge Rating badge Health score badge

Best Seraphinite Accelerator alternatives

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3 WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance WP-Optimize Get caching and more with this powerful cache plugin. Cache, optimize images, clean your… by David Anderson / Team Updraft 1M+ ★★★★★★★★★★ 4.8 (2.6K) 5 days ago 97
4 SpeedyCache – Cache, Optimization, Performance SpeedyCache – Cache, Optimization, Performance SpeedyCache is a WordPress cache plugin that helps you improve performance of your… by Softaculous 600K+ ★★★★★★★★★★ 4.4 (30) 3 days ago 90
5 Breeze Cache Breeze Cache Breeze is a caching plugin developed by Cloudways. Breeze uses advance caching systems to… by Cloudways 300K+ ★★★★★★★★★★ 3.6 (126) 2 days ago 84
6 OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. The original Google Fonts self-hosting plugin. Automagically caches your fonts locally — no… by Daan van den Bergh 300K+ ★★★★★★★★★★ 4.7 (212) 4 days ago 76
7 Jetpack Boost – Website Speed, Performance and Critical CSS Jetpack Boost – Website Speed, Performance and Critical CSS Speed up your WordPress site with one-click optimizations like Page Cache, Critical CSS… by Automattic 200K+ ★★★★★★★★★★ 4.7 (607) 1 week ago 91
8 Aruba HiSpeed Cache Aruba HiSpeed Cache Aruba HiSpeed Cache interfaces directly with an Aruba hosting platform's HiSpeed Cache… by Aruba.it Dev 100K+ ★★★★★★★★★★ 3 (10) 4 days ago 83
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10 NitroPack – Performance, Page Speed & Cache Plugin for Core Web Vitals, CDN & Image Optimization NitroPack Boost site speed and performance with an all-in-one cache and speed optimization plugin… by NitroPack 90K+ ★★★★★★★★★★ 4.3 (311) 1 day ago 78

FAQ

Seraphinite Accelerator: quick answers

Straight answers, pulled from live WordPress.org data.

Live data from WordPress.org · checked Sep 26, 2026

Is Seraphinite Accelerator free?

Yes. Seraphinite Accelerator is free to download and use from the official WordPress.org plugin directory.

Is Seraphinite Accelerator safe to use in 2026?

Seraphinite Accelerator is a solid plugin choice in 2026, with a few things worth checking first. It runs on 50K+ sites, is rated 4.8/5 and was last updated 1 week ago, and scores 79/100 on our health check.

How many websites use Seraphinite Accelerator?

Seraphinite Accelerator is active on 50K+ WordPress websites and has been downloaded 912,878 times since it launched in May 2021. It was downloaded 16,002 times in the last 30 days.

Does Seraphinite Accelerator work with WordPress 7.1?

Yes. The developer has tested Seraphinite Accelerator up to WordPress 7.1.2, the latest release. It requires WordPress 4.5 or newer.

What PHP version does Seraphinite Accelerator need?

Seraphinite Accelerator requires PHP 7.1 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.

When was Seraphinite Accelerator last updated?

The latest version, 2.29.26, was released on September 18, 2026 (1 week ago).

Who makes Seraphinite Accelerator?

Seraphinite Accelerator is developed and maintained by Seraphinite Solutions.

What are the best alternatives to Seraphinite Accelerator?

The most popular alternatives to Seraphinite Accelerator are WP Super Cache (1M+ installs), WP Fastest Cache (1M+ installs) and WP-Optimize (1M+ installs).

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