Drupal Commerce is open-source ecommerce software that augments the content management system Drupal.
Drupal is a free and open-source web content management framework.
Google PageSpeed is a family of tools designed to help websites performance optimisations.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.