cdnjs is a free distributed JS library delivery service.
FingerprintJS is a browser fingerprinting library that queries browser attributes and computes a hashed visitor identifier from them.
Google Ads Conversion Tracking is a free tool that shows you what happens after a customer interacts with your ads.
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.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Material Design Lite is a library of components for web developers.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
PHP is a general-purpose scripting language used for web development.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.
SWFObject is an open-source JavaScript library used to embed Adobe Flash content onto web pages.
VK is a Russian online social media and social networking service.