A/B Testing

VWOFirst detected on:
https://www.harpercollins.com/
Advertising

LiveIntentFirst detected on:
https://www.harpercollins.com/

theTradeDeskFirst detected on:
https://www.harpercollins.com/
Content Delivery Network (CDN)

CloudflareFirst detected on:
https://www.harpercollins.com/

cdnjsFirst detected on:
https://www.harpercollins.com/
Data Analytics

Crazy EggFirst detected on:
https://www.harpercollins.com/

VWOFirst detected on:
https://www.harpercollins.com/
Email Marketing Platform

LiveIntentFirst detected on:
https://www.harpercollins.com/

SailthruFirst detected on:
https://www.harpercollins.com/
Frontend Toolkit Framwork

BootstrapFirst detected on:
https://www.harpercollins.com/
JavaScript framework

Vue.jsFirst detected on:
https://www.harpercollins.com/
JavaScript library

core-jsFirst detected on:
https://www.harpercollins.com/

jQueryFirst detected on:
https://www.harpercollins.com/

SwiperFirst detected on:
https://www.harpercollins.com/
Marketing automation

SailthruFirst detected on:
https://www.harpercollins.com/
Online Payment Solution

PayPalFirst detected on:
https://www.harpercollins.com/

Shop PayFirst detected on:
https://www.harpercollins.com/

Apple PayFirst detected on:
https://www.harpercollins.com/

VenmoFirst detected on:
https://www.harpercollins.com/
Online Store / E-commerce

ShopifyFirst detected on:
https://www.harpercollins.com/
Personalisation

SailthruFirst detected on:
https://www.harpercollins.com/
Search engine

AlgoliaFirst detected on:
https://www.harpercollins.com/
Web Performance Optimization
Web Security

HSTSFirst detected on:
https://www.harpercollins.com/
Web Utility Tool

PopperFirst detected on:
https://www.harpercollins.com/

Open GraphFirst detected on:
https://www.harpercollins.com/