cdnjs is a free distributed JS library delivery service.
Contact Form 7 is an WordPress plugin which can manage multiple contact forms. The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering.
ExactMetrics (formerly Google Analytics Dashboard for WP) plugin helps you properly setup all the powerful Google Analytics tracking features without writing any code or hiring a developer.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
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.
Magnific Popup is a responsive lightbox & dialog script with focus on performance and providing best experience for user with any device.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Plesk is a web hosting and server data centre automation software with a control panel developed for Linux and Windows-based retail hosting service providers.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
WPML plugin makes it possible to build and run fully multilingual WordPress sites.
Yoast SEO is a search engine optimisation plugin for WordPress and other platforms.