1C-Bitrix is a system of web project management, universal software for the creation, support and successful development of corporate websites and online stores.
Apache is a free and open-source cross-platform web server software.
PHP is a general-purpose scripting language used for web development.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.