To clear the WordPress cache (instead of disabling caching entirely), use FTP to access your WordPress files. Go to the “wp-content” folder and open the “cache” folder. Now delete everything in this folder. In simplified terms, the cache is the place where data about your site is temporarily stored in order to deliver it more quickly the next time it is requested.
During troubleshooting, you may be advised to clear your site's cache. Clearing the cache should not be used as a method of optimizing or speeding the site. Instead, you can find useful information on how to optimize your site's speed here. Caching is an important consideration when it comes to making a WordPress website faster, although it's by no means a comprehensive solution.
You can also disable caching and clear the WordPress cache without using a plugin, although this requires SSH or FTP access. In this plugin, you can immediately access the “Clear Cache” button, as it is located in the WordPress admin bar. The simplest solutions start with local server caching, while more complex and complicated systems can use multiple caching servers (also known as reverse proxy servers) “in front of the web servers where the WordPress application is actually running”. If you want to disable caching without using a plugin, you'll need FTP access to your WordPress files (for example, website caching is the best way to speed up your WordPress website without sacrificing content or other performance factors).
WP Super Cache is a safe bet if you're new to caching on WordPress and you're looking for a plugin that's under constant development. In a matter of seconds, WordPress caching plugins minimize the amount of data transmitted between the visitor's browser, the WordPress database, and the web server, keeping visitors interested in your site with faster load times. W3 Total Cache is another extremely popular caching plugin for WordPress users, which is used on more than a million active sites. This plugin also adds a button to the WP admin bar to facilitate manual cleaning of the WordPress cache.
Plugins such as W3 Total Cache, WP Super Cache, and Cache Enabler can be easily installed and will cache your WordPress posts and pages as static files. In addition to WordPress caching, it also offers several performance optimization options, such as the ability to minimize HTML and CSS and accelerate JS scripts. There are several caching plugins, such as WP Rocket, that you can use to control the caching of your WordPress site. WP Rocket is a premium solution, but it's been proven to offer perhaps the best results of all the WordPress caching tools on the market.