Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

SpeedyCache is a WordPress plugin for optimizing page load times and caching efficiency.

Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.

OWL Carousel is an enabled jQuery plugin that lets you create responsive carousel sliders.

Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.

Drag and drop page builder for Wordpress.

SitePad is a WYSIWYG drag and drop website building and maintenance program.

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.

PHP is a general-purpose scripting language used for web development.

Lightbox is small javascript library used to overlay images on top of the current page.