Apache is a free and open-source cross-platform web server software.
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.
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.
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.
Modernizr is a JavaScript library that detects the features available in a user's browser.
MonsterInsights is the most popular Google Analytics plugin for WordPress.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.
Press Customizr is a multipurpose WordPress theme suitable for small businesses and ecommerce sites.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.
Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes.
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.
WP-PageNavi is a WordPress plugin which adds a more advanced paging navigation interface to your WordPress blog.
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.