That's Coffee Technology Stack

Bootstrap is a free and open-source front-end framework for designing websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions.

Gravatar is a service for providing globally unique avatars and was created by Tom Preston-Werner. It is owned by Automattic, having integrated it into their WordPress.com blogging platform.

Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.

JavaScript is the programming language of HTML and the Web.

jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML. It is free, open-source software using the permissive MIT License. Web analysis indicates that it is the most widely deployed JavaScript library by a large margin.

PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks.

Polyfill as-a-service detects and returns a JavaScript bundle of polyfills based on the current browser using the User-Agent.

Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and pagination of results.

Cloudflare Content Delivery Network (CDN) is a geographically distributed group of servers that ensure fast delivery of Internet content, including HTML pages, JavaScript files, stylesheets, and images.

WP Rocket offers a caching plugin for Wordpress.

Facebook Pixel helps organizations measure customer actions, build audiences and unlock optimisation tools. Facebook pixel is a snippet of JavaScript code that allows you to track visitor activity on your website.

Google Analytics allows users to measure sales & conversions, plus gain fresh insights into how visitors use sites, & how they arrived on site.

Hotjar is a complete website and mobile analytics tool enabling web developers, UI designers, analysts, digital marketers & more, to optimize the usability and conversion rate of their websites.

Smartlook helps business owners to track user activity and identify problems on their website using heatmaps, visitor screen recordings, and analytics. Smartlook is a qualitative analytics solution for web and mobile helping over 200,000 businesses of all sizes and industries answer the whys behind users actions why do users churn, or why arent they using a feature, or why are they skipping onboarding? Now user can eliminate the guesswork.

Gravity Forms for WordPress is a full featured contact form plugin that features a drag and drop interface, advanced notification routing.

LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.

MailChimp list management features help users organize and target their list for sending. They automatically remove bounce backs and unsubscribes from their list.

PayPal is a global eCommerce platform for buyers & sellers. PayPal allows payments & money transfers to be made securely via email, phone, text message or Skype.

reCAPTCHA is a CAPTCHA-like system designed by Google to establish that a computer user is human.

Trustwave provides on demand threat, vulnerability and compliance management services and technologies.

WooCommerce is an eCommerce plugin for Wordpress