Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
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.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Salesforce Interaction Studio (formerly Evergage) is a cloud-based software that allows users to collect, analyze, and respond to user behavior on their websites and web applications in real-time.
Trustpilot is a Danish consumer review website which provide embed stand-alone applications in your website to show your most recent reviews, TrustScore, and star ratings.
Typekit is an online service which offers a subscription library of fonts.
Unpkg is a content delivery network for everything on npm.