Key Features
Powerful performance features available even in the free version
Page Cache
Serve static HTML before WordPress loads via the advanced-cache.php dropin. The .htaccess fast-path delivers cached pages with zero PHP execution. Includes gzip compression, separate mobile cache, and 304/HEAD support.
File Optimization
Minify HTML, CSS, and JavaScript. Remove query strings from static resources. Disable WordPress emoji, jQuery Migrate, WP Embed, and other bloat. Eliminate render-blocking scripts with defer and async CSS loading.
Media OptimizationNEW
Lazy load images, iframes, and videos. Auto-add missing image dimensions to prevent CLS. YouTube thumbnail replacement for lightweight embeds. WebP/AVIF conversion, EXIF stripping, and bulk optimization in Pro.
Preloading & Prefetching
Cache warmup (desktop + mobile), sitemap-based preloading, JavaScript link prefetch, Speculation Rules API for instant Chrome navigation, font preloading, LCP optimization, DNS prefetch, and preconnect.
CDN & Object CachePRO
CDN URL rewriting with domain sharding. Cloudflare zone/URL purge, Sucuri firewall sync, Varnish HTTP PURGE. Persistent object caching with APCu, Redis, or Memcached to reduce database queries.
Database OptimizationPRO
Bulk-delete revisions, auto drafts, trashed posts, spam comments, and expired transients. Run OPTIMIZE TABLE on fragmented tables. Schedule automatic cleanup daily, weekly, or monthly via WP-Cron.
Performance Tweaks
Disable jQuery Migrate, WP Embed, Dashicons, XML-RPC, self-pingbacks, RSS feeds, oEmbed, and Gutenberg block CSS. Heartbeat API control with per-location and per-mode settings. 16 WordPress bloat-removal options in one place.
WooCommerce Support
Cart, checkout, and account pages are automatically excluded from caching. WooCommerce scripts are disabled on non-WC pages. Cart fragment AJAX can be disabled to eliminate unnecessary requests.
Security HeadersPRO
Configure HSTS, X-Content-Type-Options, X-Frame-Options, X-XSS-Protection, Referrer-Policy, and Permissions-Policy in one place. Keep your site secure while maintaining top performance.
Free vs Pro Comparison
Choose the plan that fits your needs
Full Pro Feature Set
Everything you need for advanced optimization and automation
CSS & JS Combine / Defer / Delay
Merge CSS and JS files to cut HTTP requests. Defer to remove render-blocking scripts. Delay JS execution until user interaction on mobile. Delay JS Safe Mode limits delay to external third-party scripts only.
Critical CSS / Remove Unused CSS
Auto-generate or manually define above-the-fold CSS. Analyze each page and strip unused CSS rules. Choose between Remove Unused CSS or async CSS delivery for optimal rendering.
WebP / AVIF Conversion & Bulk Optimize
Auto-convert JPG/PNG to WebP and AVIF on upload. Choose lossy, lossless, or custom quality per format. EXIF stripping, resize on upload, and batch conversion of existing media. Compression stats displayed per image in the Media Library.
Full Cache Preloading
Background crawl for desktop and mobile cache warmup. Sitemap-based URL discovery, hover/viewport link prefetch, Speculation Rules API (Chrome instant navigation), font preloading, LCP optimization, DNS prefetch and preconnect.
CDN URL Rewriting & Integration
Serve static assets from any pull-zone CDN. Domain sharding for maximum parallel downloads. Automatic Cloudflare zone and per-URL purge via API. Sucuri firewall cache sync and Varnish HTTP PURGE with regex support.
Object Cache
Persistent object caching with APCu, Redis, or Memcached backends. Dramatically reduce WordPress database queries and speed up dynamic pages that cannot be fully cached.
Database Optimization & Auto Schedule
Bulk-delete revisions, auto drafts, trashed posts, spam, and expired transients. Run OPTIMIZE TABLE. Schedule automatic cleanup daily, weekly, or monthly via WP-Cron for a lean database at all times.
Google Fonts Optimization
Combine multiple API requests into one, self-host fonts locally for zero external requests, add display=swap for visible text during load, or disable Google Fonts entirely. Improves privacy and eliminates third-party latency.
Local Google Analytics Hosting
Host gtag.js / analytics.js locally on your server. Zero external requests from Google’s CDN. Minimizes PageSpeed impact and helps with GDPR compliance by keeping tracking scripts on your own domain.
HSTS & Security Headers
Set HSTS with configurable max-age, X-Content-Type-Options, X-Frame-Options, X-XSS-Protection, Referrer-Policy, and Permissions-Policy. Harden your site with one click while keeping performance pristine.
How It Works
Speed up your WordPress site in 4 simple steps
Install & Activate
Install from WordPress.org or upload the ZIP file
Enable Page Cache
Turn on page caching and .htaccess optimization in the Page Cache tab
Tune Optimizations
Enable file optimization, media lazy load, and preloading in their respective tabs
Go Further with ProPRO
Add CSS/JS combining, image conversion, CDN, and object cache with the Pro add-on
Pricing
All core performance features are available in the free version
Free
$0
Free forever
- Page Cache (static HTML delivery)
- HTML / CSS / JS minification
- Lazy load & image dimension fix
- Basic cache preloading
- Async CSS & inline small CSS
- 16 performance tweaks
Earlybird
Pro Add-on
1-Site License
$39
$19
One-time purchase, 1 year of updates
Earlybird launch price (limited time)
- Everything in Free +
- CSS / JS combine, defer, delay
- Critical CSS / Remove Unused CSS
- AVIF conversion & YouTube thumbnail
- CDN / Cloudflare / Sucuri / Varnish
- Object cache & database optimization
Earlybird
Pro Add-on
5-Site License
$79
$39
One-time purchase, 1 year of updates
Earlybird launch price (limited time)
- Everything in 1-Site
- Use on up to 5 sites
- Perfect for agencies & freelancers
Includes 1 year of updates & email support. Payments are processed securely by Stripe.
Earlybird pricing is available during the launch window only; regular pricing applies afterwards.
Use Cases
Prime Cache delivers measurable speed gains across every type of WordPress site
WooCommerce & E-commerce
Page caching and image optimization directly impact conversion rates. WooCommerce cart, checkout, and account pages are automatically excluded. Cart fragment AJAX can be disabled to cut unnecessary requests.
Media & Blog Sites
Static HTML fast-path keeps server load minimal even under heavy traffic. CDN integration and cache preloading ensure fast access from anywhere in the world.
Corporate & Business Sites
File optimization and Critical CSS render the above-the-fold instantly. Improve PageSpeed scores to boost SEO rankings and ad quality scores.
Agencies & Freelancers
The 5-site license covers multiple client sites at a great per-site rate. Import/Export settings for rapid deployment. WP-CLI support for automation and CI workflows.
For Developers
WP-CLI, hooks & filters, and conflict detection for extension and automation
WP-CLI Support
wp prime-cache flush preload status db-cleanup — manage cache and run cleanup from the command line or CI pipelines.
Hooks & Filters
Customize cache exclusion logic and cache key generation with filters. Event-driven auto-purge fully conforms to WordPress standard hooks — post publish, comment approve, term edit, theme switch, and more.
Conflict Detection
Automatic detection and warning for 14 known caching plugins. Catch problematic environment configurations early and prevent unexpected behavior before it reaches visitors.
System Info & Debug
Comprehensive environment details: PHP, GD, Imagick, extensions, dropin load status, and WP_CACHE diagnostics. Debug logging traces cache read/write/purge operations to file.
Open Source (GPL v2+) | PHP 7.4+ | WordPress 5.8+
Frequently Asked Questions
Can I use just the free version?
Yes. The free version includes page caching (static HTML fast-path), HTML/CSS/JS minification, lazy loading, image dimension fix, async CSS, inline small CSS, basic cache preloading, and 16 performance tweaks — all with no artificial limits. The Pro Add-on adds CSS/JS combining and delay, Critical CSS, WebP/AVIF conversion, CDN integration, object cache, database optimization, and more.
Is Prime Cache compatible with other caching plugins?
No. Running multiple caching plugins causes conflicts. Prime Cache automatically detects and warns about 14 known caching plugins. Deactivate other caching plugins before using Prime Cache.
Does it work with Nginx?
Yes. Page caching, file optimization, media optimization, and all PHP-based features work on any server. The .htaccess optimization feature is Apache-specific but can be disabled on Nginx.
Does it support WooCommerce?
Yes. WooCommerce cart, checkout, and account pages are automatically excluded from caching. Additional WooCommerce optimizations include disabling WC scripts on non-WC pages and disabling cart fragments AJAX.
How do I clear the cache?
Multiple ways: admin bar menu (10+ quick actions), Dashboard quick actions, WP-CLI commands (wp prime-cache flush), or automatic purge triggers on post publish, comment approve, theme switch, and more.
Can I disable cache for a specific page?
Yes. Edit the post or page and check “Disable cache for this page” in the Prime Cache metabox in the editor sidebar. The rest of your site continues to be cached normally.
System Requirements
WordPress
5.8+
PHP
7.4+
MySQL
5.7+
Tested up to
WordPress 7.0
Manuals & Documentation
Step-by-step guides for setup and configuration
© 2026 raplsworks. All rights reserved.
Prime Cache | GPL v2 License