Seraphinite Accelerator
Turns on site high speed to be attractive for people and search engines.
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 & supportDaily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Seraphinite Accelerator stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| cache | >100 |
| Optimize | #74 |
| pagespeed | #27 |
| performance | >100 |
| speed up | #28 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 4.8 from 476 reviews
About Seraphinite Accelerator
From the official readme · v2.29.26Description
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.
Requirements
- WordPress 4.5 or higher.
- PHP 7.1 or higher.
- Browser (Google Chrome, Firefox, IE).
Compatibility
- Google Tag Manager for WordPress 1.11 or higher.
- Facebook for WordPress 3.0 or higher.
- Site Kit by Google – Analytics, Search Console, AdSense, Speed 1.30 or higher.
- Realbig For WordPress 0.3 or higher.
- Yandex Metrica 1.8 or higher.
- JivoChat Live Chat 1.3 or higher.
- EWWW Image Optimizer 6.0 or higher.
- Smush – Lazy Load Images, Optimize & Compress Images 3.8 or higher.
- reSmush.it : the only free Image Optimizer & compress plugin 0.4 or higher.
- Image optimization & Lazy Load by Optimole 3.1 or higher.
- WooCommerce 3.5 or higher.
- WooCommerce Subscriptions 2.4 or higher.
- LMS by LifterLMS 4.0 or higher.
- WP-Recall – Registration, Profile, Commerce & More 16.26 or higher.
- WordPress Social Login 3.0 or higher.
- AMP for WP – Accelerated Mobile Pages 1.0 or higher, but pages’ speed is not guaranteed due to this plugin already optimizes content.
- Jetpack – WP Security, Backup, Speed, & Growth 9.7 or higher.
- All in One SEO Pack 4.0 or higher.
- Yoast SEO 16.0 or higher.
- Rank Math SEO 1.0 or higher.
- WPML 4.0 or higher.
- PolyLang 1.8 or higher.
- Multiple Domain 1.0 or higher.
- Seraphinite Post .DOCX Source 2.0 or higher.
- Seraphinite Bulk Discounts for WooCommerce 2.0 or higher.
- Webinoly 1.14 or higher.
- ISPmanager 6.0 or higher.
- Smart Slider 3 3.4 or higher.
- Revolution Slider 6.5 or higher (partial support).
- Depicter Slider 1.9 or higher.
- Hide My WP Ghost 4.0 or higher.
- WP Hide & Security Enhancer 1.7 or higher.
- Feeds for YouTube 1.4 or higher.
- VillaTheme WooCommerce Multi Currency 2.1 or higher.
- Permalink Manager 2.2 or higher.
- Airtech Plumber HVAC and Repair theme 1.6 or higher.
- Porto theme 6.2 or higher.
- FlatSome theme 3.0 or higher.
- Slideshow of UIkit 3.14 or higher.
- Nginx Cache Controller 3.3 or higher.
- Nginx Cache 1.0 or higher.
- Nginx Helper 2.2 or higher.
- Cloudflare 4.9 or higher.
- Newspaper (tagDiv) theme 11.3 or higher.
- Image Comparison Widget of ElementsKit.
- Carousel of Happy Elementor Addons.
- Qi Addons For Elementor theme 1.6 or higher.
- Photonic Photo Gallery 2.80 or higher.
- WooCommerce – 1C Data Exchange 1.115 or higher.
- Scrollsequence – Cinematic Scroll Image Animation 1.3.0 or higher.
- GDPR Cookie Consent Plugin (CCPA Ready) 2.4 or higher.
- Tag Groups is the Advanced Way to Display Your Taxonomy Terms 2.0 or higher.
Installation
- 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.
- Activate the plugin through the ‘Plugins’ screen in WordPress.
- 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.
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.
Best Seraphinite Accelerator alternatives
All cache plugins →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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