Apache is a free and open-source cross-platform web server software.
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.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Javascript forms validation script.
PHP is a general-purpose scripting language used for web development.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
StackPath is a cloud computing and services provider.
Typekit is an online service which offers a subscription library of fonts.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.