1C-Bitrix is a system of web project management, universal software for the creation, support and successful development of corporate websites and online stores.
Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Lightbox is small javascript library used to overlay images on top of the current page.
Modernizr is a JavaScript library that detects the features available in a user's browser.
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.
Yandex.Metrica is a free web analytics service that tracks and reports website traffic.