Web Technologies Used by harpercollins.com

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 free tool from Google that enables users to easily add, update, and manage website tags. Tags are snippets of code that allow websites to track activity, such as page visits and clicks, in order to better understand user behavior. Google Tag Manager makes it easy to quickly and easily add, update, and manage website tags without having to manually update code. It also helps to ensure that tags are firing correctly and accurately tracking user activity.

Algolia offers a hosted web search product delivering real-time results.

Swiper Slider is the a modern free mobile touch slider with hardware accelerated transitions and native behavior. It is intended to be used in mobile websites, mobile web apps, and mobile native/hybrid apps.

Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.

jQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax. It is free, open-source software using the permissive MIT License.

boomerang is a JavaScript library that measures the page load time experienced by real users, commonly called RUM (Real User Measurement).

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.

Cloudflare Network Error Logging is a browser-based technology used to quickly identify problems with site visitors connecting to Cloudflare.

Google's Font API provides website developers a means by which they may quickly add custom fonts to their website.

Shopify is an e-commerce platform for online stores and retail point-of-sale systems.

Cloudflare is a company that provides content delivery network services, DDoS mitigation, Internet security and distributed domain name server services. Cloudflare's services sit between the visitor and the Cloudflare user's hosting provider, acting as a reverse proxy for websites.

Crazy Egg is an online application that provides eye tracking tools such as Heat map, Scroll map and Overlay to track a website's operation.

Google Analytics is a web analytics service offered by Google that tracks and reports website traffic. It provides valuable insights into website traffic, user behavior, and marketing performance. With Google Analytics, you can gain insights into your website’s audience, their location, the pages they visit, the content they view, and more. Google Analytics also offers powerful segmentation capabilities and advanced reporting features, allowing you to create custom reports and better understand your website’s performance.

Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.

Pinterest Conversion Tag allows you to track actions people take on your website after viewing your Promoted Pin.

theTradeDesk is an technology company that markets a software platform used by digital ad buyers to purchase data-driven digital advertising campaigns across various ad formats and devices.