by
rapls
5 (2 reviews)
Prime Cache – Page Cache on Activation & One-Click Speed Optimization
Page caching that works the moment you activate it, plus one-click speed tuning. Runs on shared hosting without editing wp-config.php.
Prime Cache ranks #29,387 among WordPress.org plugins with 10+ active installations, is #671 of 1,658 in the Performance category, a 5/5 rating from 2 reviews, and was last updated Oct 17, 2026. Data from WordPress.org, refreshed twice daily — see methodology.
Compatible with WP 7.1.4
v1.10.64
Current Version v1.10.64
Updated 2 weeks ago
Last Update on 17 Oct, 2026
Refreshed 1 week ago
Last Refreshed on
#671 of 1,658 in Performance
Top 50% by installs
Actively maintained
Rank
#29,387
—
No change
Active Installs
10+
—
No change
KW Avg Position
132
—
No change
Downloads
2.1K
+9 today
Support Resolved
0%
—
No change
Rating
100%
Review 5 out of 5
5
(2 reviews)
Next Milestone 20
10+
20+
6,214
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
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Rank Changes
Current
#29,387
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5.0
2 reviews
Overall
100%
5
2
(100%)
4
0
(0%)
3
0
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2
0
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1
0
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- Version
- 1.10.64
- Last Updated
- Oct 17, 2026
- Requires WP
- 5.8+
- Tested Up To
- 7.1.4
- PHP Version
- 7.4 or higher
- Author
- rapls
Support & Rating
- Rating
- ★ ★ ★ ★ ★ 5
- Reviews
- 2
- Support Threads
- 0
- Resolved
- 0%
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Frequently Asked Questions
Common questions about Prime Cache – Page Cache on Activation & One-Click Speed Optimization
Yes. In our tests with Cocoon 2.9.5 (October 2026), Prime Cache's Auto preset worked together with all of Cocoon's speed settings turned on (minification, lazy loading and browser cache), and no layout or script problems were found. Both write browser-cache rules to .htaccess; where they overlap, Cocoon's rules come later and take effect, which is fine. If something does look wrong on your site, turn off Cocoon's HTML/CSS/JS minification first, then press Safe in Prime Cache.
In the free plugin, Auto turns on: page cache with mobile caching, gzip compression, browser cache headers, .htaccess Optimization (only when .htaccess is writable), HTML / CSS / JavaScript minification, removal of HTML comments, lazy loading for images, iframes and videos (the first six images stay eager so the largest image is not delayed), missing image width/height, a local copy of jQuery when the theme loads it from a CDN, deferred JavaScript, inline small CSS, asynchronous loading of non-first CSS, Google Fonts display=swap, disabling emoji and embeds, removing version query strings, limiting DNS prefetch, disabling block CSS on classic themes, link prefetching and cache preloading. On WooCommerce sites it also turns off WooCommerce scripts on non-shop pages and cart fragments, and adds the cart, checkout and account pages to the exclusions. Auto does not turn on Delay JavaScript Execution, WebP conversion or Brotli compression in the free plugin. Prime Cache Pro adds its own items to Auto (see the Description).
The free plugin does not. It reads wp-config.php to see whether WP_CACHE is set, and never writes to it. Page caching works without WP_CACHE. If you add define( 'WP_CACHE', true ); yourself, cached pages are served before WordPress core loads, which is faster still. Prime Cache Pro can add the line for you with one click and writes a backup first.
My host already has a server cache. Do not let two page caches serve the same pages. When the host's cache sits in front of Prime Cache, Prime Cache's purge does not reach it, so visitors can keep seeing an old copy after you update a post. Decide which one serves your pages. If you keep the host's cache, clear it as well whenever you clear Prime Cache. Prime Cache Pro detects common server-side caches and tells you when one is in front of the site. Logged-in users see old pages. They should not by default. Logged-in users are never served cached pages, and page optimizations are skipped for them. If you turned on Logged-in User Cache in the Page Cache tab, every logged-in user shares one cached copy with anonymous visitors; turn it off.
Multiple ways: the admin bar menu (Prime Cache > Clear All Cache and other options), Dashboard quick actions, WP-CLI (wp prime-cache flush), or the automatic purge triggers.
Yes. The admin screens are translated into Japanese.
The features target the usual Core Web Vitals bottlenecks: page caching and preloading shorten server response time (TTFB, which feeds LCP), minification and deferred JavaScript reduce render-blocking resources, lazy loading and WebP conversion cut image weight, and keeping the first images eager protects the LCP image. Results depend on your theme, hosting and other plugins, so measure before and after each change.
WordPress 5.8+, PHP 7.4+. For WebP conversion, the GD or Imagick PHP extension is required.
Yes. Page caching, file optimization, media optimization, and all PHP-based features work on any server. The .htaccess Optimization feature needs a server that reads .htaccess and can be left off on Nginx.
Yes. WooCommerce cart, checkout, and account pages are automatically excluded from caching. Additional WooCommerce optimizations include disabling scripts on non-WC pages and disabling cart fragments AJAX.
