Apache is a free and open-source cross-platform web server software.
Drupal is a free and open-source web content management framework.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Imperva is a cyber security software and services company for networking, data, and application security.
Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.