Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
IPInfoDB is the API that returns the location of an IP address.
MaxMind is a provider of geolocation and online fraud detection tools.
PHP is a general-purpose scripting language used for web development.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.