Plugin
Updated
Seraphinite Accelerator
Seraphinite Accelerator by Seraphinite Solutions is a WordPress plugin for caching and front-end optimization. It builds a file cache of your pages, compresses and minifies code, and delays loading of media and scripts so pages reach visitors with less work for the server and the browser.
- Version
- 2.29.28
- Released
- Oct 13, 2026
- Developer
- Seraphinite Solutions
- Type
- WordPress plugin
- Licence
- GPL
- Included in
- Every plan, or $7.19 a year on its own
What’s new in Seraphinite Accelerator 2.29.28
Version 2.29.28
Latest
- ImprovedRemote optimization: increasing speed of transmitting data.
What it does
Slow pages usually come from the same few causes: every visit makes the server rebuild the page, files travel uncompressed, and images, fonts and scripts all load at once. This plugin tackles those causes together. It uses a file cache engine with cache revalidation that keeps server resource use low, and lazy revalidation so cached pages keep being served while content is refreshed. It applies its optimizations automatically once active, so most sites need few manual adjustments.
Beyond caching, it works on the page itself. It minifies JavaScript, CSS and HTML, fixes common markup problems such as unescaped scripts and misplaced tags, and can lazy load, inline or defer scripts and styles. It caches separately by device, environment and individual user, which suits dynamic content like shopping carts and online courses. It can balance delivery across multiple CDNs, work alongside many third-party optimization plugins, and has no site registration or page view quotas.
Best for
- WooCommerce and online stores with carts and logged-in users
- Blogs and content sites wanting faster page delivery
- Online course sites serving personalized pages
Features
File cache with revalidation
A file-based cache engine serves stored pages, and efficient revalidation keeps server resource use low so the site stays stable during heavy traffic.
User and device specific caching
Cached pages can differ by device type, user environment and individual user, which helps with dynamic content such as shopping carts and online courses.
Multiple compression formats
Cached content can be stored and sent using GZip, Deflate, Compress or Brotli encoding, or left uncompressed when that suits the setup.
Code minification
JavaScript, CSS and HTML are minified to reduce the size of each page, and common markup errors like misplaced tags are corrected automatically.
Lazy loading for media
Images, videos, frames and fonts can load lazily, so the first view of a page requests less data up front.
Script loading controls
JavaScript and CSS can be lazy loaded, inlined or deferred, letting the most important content on a page render first.
Multiple CDN balancing
Content delivery can be spread across more than one CDN, which can help reduce bandwidth use on your own server.
Storage deduplication
Repeated parts of cached pages are stored only once, saving disk space on the server as the cache grows.
Seraphinite Accelerator older versions
- 2.29.27Oct 43 improvements, 1 fix
- 2.29.26Sep 181 improvement
- 2.29.24Sep 101 improvement, 1 fix
- 2.29.23Sep 7
- 2.29.22Sep 3
- 2.29.21Aug 23
- 2.29.20Aug 2
- 2.29.19Jul 27
- 2.29.18Jul 23
- 2.29.17Jul 18
Members and buyers of this product can download older versions.
144 older versions in all. If you need one that is not listed, ask support.
Questions about Seraphinite Accelerator
Will it work if I already use another optimization plugin?
It is built to work alongside many third-party optimization plugins. You can keep tools you rely on and let this plugin handle caching, compression and script loading, adjusting settings where two tools would otherwise do the same job.
Can it cache pages for logged-in users or shopping carts?
Yes. It supports user-specific caching, so pages can be cached for individual users. That makes it suitable for dynamic content such as shopping carts and online courses, where each visitor sees different details.
Does it need much setup before it starts working?
It applies optimizations automatically once active, and most sites need only minimal manual adjustments. You can then fine-tune options such as script deferring, lazy loading and exclusions if a particular page needs it.
Are there page view limits or a required account?
No. It has no site registration requirement and no page view quotas, and it does not show banners or promotions on your site.
Is Seraphinite Accelerator free?
The code of Seraphinite Accelerator is licensed under the GPL, so anyone may use, change and share it. GPL Feast is a paid service: a plan or a single purchase gives you the download and automatic updates. The developer's own support, licence key and online services are not included.
Which version of Seraphinite Accelerator is this?
Version 2.29.28, released Oct 13, 2026. New versions appear here when the developer publishes them, and members get them as automatic updates.
How do I update Seraphinite Accelerator?
Install the free GPL Feast Updater on your site and connect it with your API key. It installs new versions of Seraphinite Accelerator automatically and keeps a backup, so you can roll back.
You might also like
