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.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Magento is an open-source ecommerce platform written in PHP.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.