Apache is a free and open-source cross-platform web server software.
CartStack is a SaaS solution that allows any company with an ecommerce site or reservation system to increase revenue through reminding/encouraging consumers to return to their abandoned cart and complete their purchase.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.