1C-Bitrix is a system of web project management, universal software for the creation, support and successful development of corporate websites and online stores.
AdRiver is a company which provide internet advertising management and audit software.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
PHP is a general-purpose scripting language used for web development.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.