by
etruel
3.7 (3 reviews)
Flash Cache
Static page cache served by your web server, without PHP: cache rules per page type, background refreshes and lighter CSS and JavaScript.
Flash Cache ranks #25,684 among WordPress.org plugins with 20+ active installations, is #596 of 1,658 in the Performance category, a 3.7/5 rating from 3 reviews, and was last updated Oct 21, 2026. Data from WordPress.org, refreshed twice daily — see methodology.
Compatible with WP 7.1.4
v4.0
Current Version v4.0
Updated 2 weeks ago
Last Update on 21 Oct, 2026
Refreshed 1 week ago
Last Refreshed on
#596 of 1,658 in Performance
Top 50% by installs
Downloads +129.6% this week
Actively maintained
Rank
#25,684
—
No change
Active Installs
20+
-28.6%
KW Avg Position
N/A
—
No change
Downloads
10.5K
+10 today
Support Resolved
0%
—
No change
Rating
74%
Review 3.7 out of 5
3.7
(3 reviews)
Next Milestone 30
20+
30+
2,939
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
Pro
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Need 2 more installs to reach 30+
Rank Changes
Current
#25,684
Change
Best
#
Downloads Growth
Downloads
Growth
Peak
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Upgrade NowReviews & Ratings
3.7
3 reviews
Overall
74%
5
2
(67%)
4
0
(0%)
3
0
(0%)
2
0
(0%)
1
1
(33%)
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- Version
- 4.0
- Last Updated
- Oct 21, 2026
- Requires WP
- 5.9+
- Tested Up To
- 7.1.4
- PHP Version
- 7.2 or higher
- Author
- etruel
Support & Rating
- Rating
- ★ ★ ★ ★ ☆ 3.7
- Reviews
- 3
- Support Threads
- 0
- Resolved
- 0%
Keywords
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Frequently Asked Questions
Common questions about Flash Cache
Go To Flash Cache settings and set up the plugin configurations.
No. The free plugin is a complete page cache, with patterns, background refreshes, preload and style and script optimization. Flash Cache Pro funds its development and adds extras such as live widgets and blocks, the shared widget cache, minification and local Google Fonts.
Yes: purchasing Flash Cache Pro keeps Flash Cache growing for everyone, and you get its extra features. Reviews and translations help a lot too.
In this FAQ you will find a step to step tutorial on how to install and configure Flash Cache.
Yes. nginx reads rules only from its own configuration, so Flash Cache writes them to nginx.conf in the site's folder and you include that file once in the site's server block. The General settings screen shows the exact line and tells you when nginx needs a reload to pick up changed settings.
Yes, with LiteSpeed Enterprise and OpenLiteSpeed. Flash Cache writes its rules to .htaccess and the server sends the cached pages, compressing them itself. OpenLiteSpeed reads .htaccess changes when it restarts, and the General settings screen tells you when a restart is due. It also skips the headers in .htaccess: the same screen gives you the virtual host settings for browser cache headers, ready to copy.
No. Flash Cache writes its rules and cache folders for one site, and the sites of a network share the same server rules and home folder. It can only be activated on single WordPress sites.
Cached pages are served by the web server alone, without PHP. Building a page in the background (after publishing, during the preload or when a cached page expires) requests that page from your own site, so it needs one free PHP worker besides the one doing the work. We recommend at least 4 PHP workers (PHP-FPM pm.max_children). With 2, a long background task such as a large import can make uncached visits wait in line for a free worker. On hosting with few workers, turn off the pattern options "Cache the post when it is published or updated", "Refresh the home page…" and "Refresh the first page of its categories and tags": publishing then clears those pages, and the next visitor caches them without any background request.
