Cloudflare的作者是John Wineman, Furkan Yilmaz, Junade Ali (Cloudflare Team),目前有200,000+个有效安装。已经Tested with 5.2.6版本的wordpress。
What this plugin can do for you
One-click WordPress-optimized settings
The easiest way to setup Cloudflare for your WordPress site.
Web application firewall (WAF) rulesets
Available on all of Cloudflare’s paid plans, the WAF has built-in rulesets, including rules that mitigate WordPress specific threats and vulnerabilities. These security rules are always kept up-to-date, once the WAF is enabled, you can rest easy knowing your site is protected from even the latest threats.
Automatic cache purge
Occurs when you change the appearance of your website. This means that you can focus on your website, while we ensure that the latest content is always available to your visitors.
(Note: By default, Cloudflare does not cache HTML, and a cache purge is not required on updating HTML content such as publishing a new blog entry).
Additional features

Header rewrite to prevent a redirect loop when Cloudflare’s Universal SSL is enabled

Change Cloudflare settings from within the plugin itself without needing to navigate to the dashboard. You can change settings for cache purge, security level, Always Online, and image optimization

View analytics such as total visitors, bandwidth saved, and threats blocked

Support for HTTP2/Server Push