Milan Dinić

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Purge Cache for CloudFlare is a simple plugin that uses CloudFlare® API to purge cache of full HTML pages when a new post is made.
This free version is only indended for basic usage. If you want to use it in full capacity, consider buying <a href="https://shop.milandinic.com/downloads/purge-cache-for-cloudflare-plus/" rel="nofollow ugc">premium version</a>.
It works by purging front page, post’s page, and main RSS feed. This should work for most sites. However, there are of filters, actions, and methods that provide full customizability and extensibility.
Note that this plugin also sets cache to 30 minutes for all frontend pages. This means that if you use default option in CloudFlare, it tells them to revalidate page cache after that time, so it means that cache for any page expires on CloudFlare servers after that time.
You can change this limits by using filters from you code. If you want user interface in your admin, use <a href="https://shop.milandinic.com/downloads/purge-cache-for-cloudflare-plus/" rel="nofollow ugc">premium version</a>.
You should create new CloudFlare page rules to set proper caching. It is your responsibility to set this properly.
First page rule should exclude certain paths from caching. Recommended value for this is <code>wp-</code>. This excludes admin pages and default <code>.php</code> pages. Example of URL pattern: <code>*example.com/*wp-*</code> This value can also set via filter or via admin in <a href="https://shop.milandinic.com/downloads/purge-cache-for-cloudflare-plus/" rel="nofollow ugc">premium version</a>.
Second page rule should sets caching. You need to set “Custom caching” to “Cache everything”. Recommended value for “Edge cache expire TTL” is default, “Respect all existing headers” which means that CloudFlare revalidates after 30 minutes, while for “Browser cache expire TTL” is also 30 minutes. Example of URL pattern: <code>*example.com/*</code>
This plugin is on <a href="https://github.com/dimadin/purge-cache-for-cloudflare" rel="nofollow ugc">GitHub</a> too.
Purge Cache for CloudFlare is in no way affiliated with CloudFlare. It is only using CloudFlare API to purge page cache of certain URLs. 
CloudFlare is registered trademark of CloudFlare, Inc.

Purge Cache for CloudFlare

Simple full HTML page cache purger for CloudFlare.

Taylor Lovett

Simple Cache was constructed after getting frustrated with the major caching plugins available and building sites with developer-only complex caching solutions that get millions of page views per day. Simple Cache promises the following:
<ul>
<li>Extremely simple one-click install. There is an on-off switch. That’s it. No need to wade through 50 complicated settings.</li>
<li>Simple Cache makes your site run very fast so you can handle lots of traffic.</li>
<li>Extremely easy to delete. Don’t like the plugin? You can remove it, and your website won’t break.</li>
<li>Easily clear the cache if you need to.</li>
<li>Enable gzip compression</li>
<li>Want to get advanced with object caching (Memached or Redis)? An advanced mode is available that will automatically setup <a href="https://wordpress.org/plugins/batcache/" rel="ugc">Batcache</a> and <a href="https://wordpress.org/plugins/memcached/" rel="ugc">Memcached</a>/<a href="https://wordpress.org/plugins/wp-redis/" rel="ugc">Redis</a> for you.</li>
</ul>
If you need your site to run fast, don’t have time to mess with complicated settings, and have been frustrated by other caching plugins, give Simple Cache a try.
Pull requests are welcome on <a href="https://github.com/tlovett1/simple-cache" rel="nofollow ugc">Github</a>.
<h3>Support</h3>
For full documentation, questions, feature requests, and support concerning the Simple Cache plugin, please refer to <a href="http://github.com/tlovett1/simple-cache" rel="nofollow ugc">Github</a>.

Simple Cache

I had this plugin on about 30 sites two years ago, but have since removed it, one by one, because of bad experiences of many kinds. The last was removed today, after site crashed due to fatal error in caused by the last update to this plugin.

When deactivating it also puts DEFINE('WP_ACHE', false); at the top of wp-config.php. This is bad and makes trouble using another cache plugin, unless this line is manually removed.

I can not recommend this plugin. Be aware of the thing mentioned above, when uninstalling to try out another.

Sorry - bad plugin

A very simple plugin to make your site run lightning fast with caching.

Purge Cache for CloudFlare vs Simple Cache