Apache is a free and open-source cross-platform web server software.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Trusted Shops is a company that acts as a 3'rd party representing the common interests of both consumers and retailers.
WooCommerce is an open-source ecommerce 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.