Apache is a free and open-source cross-platform web server software.
Gutenberg is the code name for the new block based editor introduced in WordPress 5.
MailChimp for WordPress is an email marketing plugin that enables you to build subscriber lists.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
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.