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.

Jose Mortellaro

Update Page Cache flushes and generates again the page cache.
The actual version supports <a href="https://wordpress.org/plugins/w3-total-cache/" rel="ugc">W3 Total Cache</a>, <a href="https://wordpress.org/plugins/wp-fastest-cache/" rel="noopener ugc">WP Fastest Cache</a>, <a href="https://wordpress.org/plugins/wp-super-cache/" rel="ugc">WP Super Cache</a>, and <a href="https://wordpress.org/plugins/wp-optimize/" rel="ugc">WP Optimize</a>.
When you modify a page and save it, usually caching plugins automatically clear the cache of that page, but you need to visit again the page to generate again the cache.
Update Page Cache adds a button on every single page, post and custom post type that you can click to automatically clear and regenerate the cache of that page. Be careful, you will not see the button if you have Fullscreen mode active.
When you edit a single page, if you click on the “Update Page Cache” button, the cache of that page will be automatically updated without the need to visit that page.
In the main settings you can set for each post types if the plugin should automatically clear the page cache when that single post type is saved.
You can also decide which page caches should be updated after saving a specific post type. 
In the example shown in the screenshot of the main settings, when a single blog post is saved Update Page Cache updates the cache of the blog page and homepage. When a contact form is saved, Update Page Cache updates the cache of the page Contact.

Update Page Cache

I'm the author of this plugin, but I'm also a user. I'm installing it on the websites where I use caching plugins and I love it. I love my own plugin, I think it does what is written in the description and make save time. So even though I'm the author, I give it 5 stars.

Author and user

Update Page Cache flushes and generates again the page cache. Compatible with W3 Total Cache, WP Fastest Cache, WP Super Cache, WP Optimize.

Purge Cache for CloudFlare vs Update Page Cache