Knowledge Partners

InternetRetailing would like to thank our Knowledge Partners, the companies that have offered original research insights, plus advice and guidance, in putting together the IREU 500.


BuiltWith, a website assessment company, found the technologies in use on every IREU 500 website – from ecommerce platforms to logistics plug-ins.


GTmetrix, a website monitoring company, assessed how well IREU 500 websites had been designed for mobile devices.

NCC Group

NCC Group, a company that, among other services, offers website monitoring and consultancy services to retailers, performed multiple tests of all EEA-localised landing pages of the IREU 500.


Poq contributed a dataset on the relative value of app features, measured by time spent in-app, average order value and conversion rate. The app developer also assisted in the design and research of a pan-European app capability study used in this report.

Return Path

Email experts Return Path drew upon their millions-strong consumer base to gauge the average interaction a subset of IREU 500 retailers received in France, Germany and the UK.


SimilarWeb, a web traffic monitoring company, contributed data on the number of users using IREU 500 websites on a country-specific basis.

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