Apache is a free and open-source cross-platform web server software.
Jetpack Boost – Website Speed, Performance and Critical CSS.
Kadence WP Blocks is a plugin for WordPress that provides a collection of custom blocks for the Gutenberg editor, allowing users to create custom layouts and designs for their website without needing to know how to code.
PHP is a general-purpose scripting language used for web development.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
WordPress Super Cache is a static caching plugin for WordPress.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
Zakra is flexible, fast, lightweight and modern multipurpose WordPress theme that comes with many starter free sites.