Apache is a free and open-source cross-platform web server software.
AppDynamics is an application performance management (APM) and IT operations analytics (ITOA) company based in San Francisco.
Drupal Multisite enables separate, independent sites to be served from a single codebase.
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.