I compared WordPress cache plugins, narrowing down to those that can be used for free.

Prerequisites for Choosing a Cache Plugin

This site runs WordPress with Nginx and PHP-FPM configuration.

I selected cache plugins from an engineer’s perspective who can customize WordPress, Nginx, PHP-FPM, and other settings.

Plugins Compared

• W3 Total Cache
• WP Fastest Cache
• WP Super Cache

W3 Total Cache

In conclusion, I think W3 Total Cache is the only choice.

The advantage is that it can cache PC and mobile with separate themes.

The disadvantage is that you can’t handle it without properly understanding Nginx configuration.

WP Fastest Cache

WP Fastest Cache seems to be featured on many sites as a cache plugin popular with beginners.

The advantage is that it’s easy to handle.

The disadvantage is that some features are paid. These paid features include the ability to cache mobile versions.

WP Super Cache

I previously used WP Super Cache.

The advantage is that there’s a lot of information available online since it’s a well-established cache plugin.

The disadvantage is that mobile support is left to the plugin and you can’t use your preferred theme.

When Google announced plans to introduce mobile-first indexing, I realized I needed to implement mobile support. At that time, I was concerned about the poor mobile support features and migrated to W3 Total Cache.

Summary

W3 Total Cache is recommended because it has an easy-to-use admin interface and allows you to set your preferred theme for both PC and mobile. I plan to publish W3 Total Cache configuration instructions soon.

WordPress users who have something to say about cache plugins, please leave questions or counterarguments in the comments section.

That’s all from the Gemba.