LiteSpeed Cache
Free server-level cache and optimisation suite from LiteSpeed Technologies; full-page caching needs a LiteSpeed web server or QUIC.cloud CDN.
94
Cache Enabler
Lightweight free disk cache from KeyCDN that serves static HTML, with Gzip/Brotli pre-compression, WebP variants, mobile cache and WP-CLI.
Free installs100K+WordPress.org, active
Rating4.3/5139 reviews
Price fromFreeFree
Last updated27 Sep 2026Version 1.8.17
Overview
Cache Enabler is a free, lightweight page caching plugin from KeyCDN. It does one job: it generates static HTML copies of your pages, stores them on disk and serves them to visitors so WordPress does not have to rebuild every page on each request. There is no premium version and no upsell.
How it works
Cached pages are created on first visit and cleared automatically when you publish or update posts, approve comments, change terms or users, or activate plugins. You can also clear the cache from the admin bar or with WP-CLI, and set an expiry time handled by WP-Cron. Optional cache variants include a separate mobile version, a WebP version (rewriting image URLs to WebP files that another tool has already created), and pre-compressed Gzip or Brotli copies. HTML can be minified, with or without inline CSS and JavaScript. Exclusions accept post IDs and regular expressions for paths, query strings and cookies, and logged-in users are excluded by default.
For maximum speed, the documentation includes Apache and Nginx rewrite rules that let the web server deliver cached files directly without loading PHP. Multisite networks are supported with per-site cache handling, and developers get a set of hooks plus WP-CLI commands.
What it does not do
Cache Enabler intentionally leaves out front-end optimisation. It does not minify or combine CSS and JavaScript files, defer scripts, generate critical CSS, lazy-load images or manage browser-cache headers, and it has no database or Heartbeat tools. CDN URL rewriting is handled by KeyCDN’s separate free CDN Enabler plugin, and WebP files must come from an image plugin such as KeyCDN’s Optimus. The readme notes that it works well alongside Autoptimize, and Autoptimize’s FAQ in turn recommends Cache Enabler as a companion page cache.
Strengths
- Small, fast and simple, with few settings to get wrong.
- Free, open source and works on any host.
- Brotli/Gzip pre-compression and WebP-aware caching.
Who should pick it: developers and site owners who want a minimal, dependable page cache and prefer to choose separate tools for CSS, JavaScript and images.
Best for: Users who want a small, reliable page cache and will pair it with separate tools for asset and image optimisation.
Cache Enabler is a clean, focused page cache that does its narrow job well and costs nothing. It is not an all-in-one speed plugin, so plan on combining it with something like Autoptimize if you need front-end optimisation.
Pros
- Very lightweight with minimal settings
- Gzip and Brotli pre-compressed cache files
- WebP and mobile cache variants
- Smart automatic cache clearing on content changes
- Server rewrite rules can bypass PHP entirely
- WP-CLI and multisite support
Cons
- No CSS/JS minification, combining or deferral
- No lazy load, critical CSS or image optimisation
- No cache preloading or browser-cache header management
- CDN rewriting needs the separate CDN Enabler plugin
Key features
What Cache Enabler highlights on its WordPress.org page and its own website, split by version.
Free version WordPress.org
- Static HTML disk cache
- Automatic smart cache clearing
- Configurable cache expiry
- Separate mobile cache variant
- WebP-aware cache variant
- Gzip and Brotli pre-compression
- HTML minification incl. inline CSS/JS
- Regex exclusions for paths, cookies, queries
- Apache/Nginx rewrites to bypass PHP
- 304 Not Modified support
- Multisite per-site caching
- WP-CLI cache commands
- Developer hooks
Feature checklist
10 of 25 features we track in Caching & Speed, feature score 36/100
Caching 5/8
Page caching Key
Serves pre-built HTML pages.
Stores static HTML copies of pages on disk.
Included
Browser caching rules
Sets cache headers for static files.
Does not set browser cache headers; supports 304 Not Modified.
Not included
Cache preloading
Builds the cache before visitors arrive.
No cache preloading; pages cache on first request.
Not included
Object cache
Redis or Memcached object caching.
No object cache integration.
Not included
Separate mobile cache
Different cache for mobile devices.
Optional separate cache variant for mobile devices.
Included
WooCommerce-aware caching
Excludes cart, checkout and account pages automatically.
Cart/checkout excluded via cookie handling; clears cache on stock updates.
Included
Page cache on any server
Page caching works on Apache, Nginx and LiteSpeed alike.
Works on any host; optional Apache/Nginx rewrites for extra speed.
Included
Multisite support
Works on WordPress multisite networks.
Supports multisite with per-site cache management.
Included
CSS & JavaScript 1/7
Minify CSS & JS
Strips whitespace from CSS and JavaScript.
Minifies HTML and optionally inline CSS/JS; not CSS/JS files.
Partial
Combine files
Merges CSS/JS files.
No file combining.
Not included
Defer / delay JavaScript Key
Loads scripts after the page renders or on interaction.
No defer or delay JavaScript.
Not included
Remove unused CSS Key
Generates only the CSS each page uses.
No unused CSS removal.
Not included
Critical CSS
Inlines above-the-fold CSS.
No critical CSS.
Not included
Font optimisation
Self-hosts or preloads web fonts.
No font optimisation.
Not included
Preload and prefetch
Preload fonts, images or links and prefetch DNS.
No preload/prefetch controls.
Not included
Media & delivery 3/7
Lazy loading
Defers off-screen images and iframes.
No lazy loading.
Not included
Image compression
Compresses uploaded images.
Compression via KeyCDN's separate Optimus plugin (freemium).
Via add-on
WebP / AVIF delivery
Serves next-gen image formats.
Caches a WebP variant using existing WebP files; no conversion or AVIF.
Partial
CDN integration
Rewrites asset URLs to a CDN.
CDN URL rewriting via KeyCDN's free CDN Enabler plugin.
Via add-on
Cloudflare integration
Purges or configures Cloudflare.
No Cloudflare integration.
Not included
Lazy-load video embeds
Replace YouTube and Vimeo embeds with a lightweight preview.
No video embed placeholder.
Not included
Included CDN service
A CDN is part of the product or plan, not just URL rewriting.
No bundled CDN; KeyCDN is a separate paid service.
Not included
Housekeeping 1/3
Database cleanup
Removes revisions, transients and spam.
No database cleanup.
Not included
Heartbeat control
Limits the WordPress Heartbeat API.
No Heartbeat control.
Not included
WP-CLI commands
Clear or warm the cache from the command line.
WP-CLI commands to clear the cache.
Included
Pricing
Free
$0On WordPress.org
Free
Freeper yearUnlimited
Free on WordPress.org; no paid edition.
Prices are list prices from the vendor's site, checked 14 Oct 2026. Many vendors discount the first year.
How many sites use Cache Enabler?
Free installs from WordPress.org, the vendor's own claim, and our estimate of paid installs.
Free version (WordPress.org)
100K+
Active installations reported by WordPress.org.
Vendor claim
—
The vendor does not publish a total.
Estimated Pro / paid installs
n/a
There is no paid version.
Stats & health
Weekly downloads
8,718 downloads last week, 2.8M all time
Rating breakdown
| Version | 1.8.17 |
|---|---|
| Last updated | 27 Sep 2026 (37 days ago) |
| Tested up to | WordPress 7.1.4 |
| Requires | WordPress 5.1+, PHP 5.6+ |
| Support threads (2 months) | 0 of 1 resolved |
| On WordPress.org since | 21 Oct 2015 |
Cache Enabler compared
Cache Enabler/WP-Optimize
Cache Enabler/Jetpack Boost
Cache Enabler/xSpeed Cache
Cache Enabler/Perfmatters
Cache Enabler/NitroPack
Cache Enabler/WP Super Cache
Cache Enabler/WP Fastest Cache
Cache Enabler/FlyingPress
Breeze/Cache Enabler
Cache Enabler/Hummingbird
Autoptimize/Cache Enabler
Cache Enabler/WP RocketCache Enabler/LiteSpeed Cache
Cache Enabler/W3 Total Cache Alternatives to Cache Enabler
xSpeed Cache
Free WordPress cache plugin with static page caching, Redis and Memcached object cache, database cleanup and a built-in MCP server.
100
FlyingPress
Premium all-in-one WordPress speed plugin: page cache, used-CSS generation, delayed JS, image optimisation, Redis and an optional FlyingCDN add-on.
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WP Rocket
Premium all-in-one caching and performance plugin for WordPress that applies page caching, file optimisation and lazy loading as soon as it is…
89
NitroPack
Cloud-based speed optimisation service with caching, critical CSS, image optimisation and a built-in Cloudflare-powered CDN, billed by pageviews.
87
Hummingbird
WPMU DEV's performance plugin with page, browser and Gravatar caching, asset optimisation, Cloudflare tools and Redis; Pro adds critical CSS and a…
86
FAQ
Is Cache Enabler free?
Yes. Cache Enabler has a free version on WordPress.org.
How many sites use Cache Enabler?
WordPress.org reports 100K+ active installations of the free version.
Does Cache Enabler have page caching?
Yes: included. Stores static HTML copies of pages on disk.
Does Cache Enabler have defer / delay javascript?
No: not included. No defer or delay JavaScript.
Does Cache Enabler have remove unused css?
No: not included. No unused CSS removal.
Is Cache Enabler free?
Yes. It is a free, open-source plugin from KeyCDN with no paid version.
Does Cache Enabler minify CSS and JavaScript?
Only inline CSS and JS inside the HTML when HTML minification is enabled. For file-level minification, combining or deferral, pair it with a plugin such as Autoptimize.
Does it convert images to WebP?
No. It can cache a WebP variant that points to WebP files you already have, created by a plugin such as Optimus.
Does it work with WooCommerce?
KeyCDN's documentation says cart and checkout are excluded automatically through cookie handling, and the plugin clears the cache on stock changes.
How do I use a CDN with Cache Enabler?
Install KeyCDN's free CDN Enabler plugin, which rewrites static asset URLs to your CDN hostname.
Last updated 5 Oct 2026. Spotted something wrong? Suggest an edit.