Simple Cache Killer
Allows users to specify that requests to their content not be cached in any way, easily from within the Wordpress admin.
Consider an alternative
Simple Cache Killer shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 12 years ago, and scores 23/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 12 years
- Only tested up to WordPress 4.0 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Simple Cache Killer stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| cache | >100 |
| cache-control | >100 |
| caching | >100 |
| meta http-equiv | #13 |
| pragma no-cache | #16 |
Version adoption
Share of active sites per release.
About Simple Cache Killer
From the official readme · v1.0.2Description
** For Multisite/Network Users **
I wrote this plugin because of several situations I’ve run in to running a multisite network where I’ll want to include
caching for WordPress sites in most cases, but might need to exclude one of the sites on the network from that caching.
By activating this plugin and checking the different caching options, requests to that sites pages/posts can be instructed
not to cache site content without disrupting the caching strategy in place for other sites.
** For single site installations **
This plugin will still be useful for single site installations where the site administrator may not have access to the web server
to specify the types of HTTP caching headers that are returned on each request. By allowing you to specify and rewrite the HTTP caching
headers at the site level, you’ll no longer need access to the web server in order to make sure visitors are always served fresh
content.
Bug Reports or Feature Requests
https://trello.com/b/zLViVgjx
Follow me on Twitter
https://twitter.com/jcummings1974
Installation
This plugin was built specifically for multisite networks, but should work on any WordPress site. The obvious benefit though, will be when you’re hosting multiple WordPress sites from a single installation/server and need to adjust the caching instructions sent by just one site.
- Upload
plugin-name.phpto the/wp-content/plugins/directory - Activate the plugin through the ‘Plugins’ menu in WordPress
- Visit the
SCK Settingssection of your settings menu to set the types of instructions you want to use.
Changelog
1.0.2
- WordPress 4.0 Compatibility release
1.0.1
- Minor bug fixes.
- Improved instructions in the WordPress admin.
- Inclusion of reference information outlining the different types of caching supported.
1.0
- Initial release
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best Simple Cache Killer alternatives
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FAQ
Simple Cache Killer: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 4, 2026
Is Simple Cache Killer free?
Yes. Simple Cache Killer is free to download and use from the official WordPress.org plugin directory.
Is Simple Cache Killer safe to use in 2026?
Simple Cache Killer shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 12 years ago, and scores 23/100 on our health check.
How many websites use Simple Cache Killer?
Simple Cache Killer is active on 10+ WordPress websites and has been downloaded 2,675 times since it launched in February 2014. It was downloaded 78 times in the last 30 days.
Does Simple Cache Killer work with WordPress 7.1?
Simple Cache Killer is officially tested up to WordPress 4.0.38, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Simple Cache Killer last updated?
The latest version, 1.0.2, was released on September 8, 2014 (12 years ago).
Who makes Simple Cache Killer?
Simple Cache Killer is developed and maintained by John Cummings.
What are the best alternatives to Simple Cache Killer?
The most popular alternatives to Simple Cache Killer are WP Super Cache (1M+ installs), WP Fastest Cache (1M+ installs) and WP-Optimize (1M+ installs).
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