World History Encyclopedia increases conversion rates by 5% with Checkout

World History Encyclopedia is a non-profit organisation whose mission is to engage people with cultural heritage and improve history education worldwide. It is currently the world’s most-read history encyclopedia.

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To support its mission of improving history education worldwide, World History Encyclopedia set out to translate its encyclopedias into as many languages as possible. In order to provide an end-to-end localised experience to its readers, it needed to create a checkout page that supported membership subscriptions in the local currency of each country and accepted local payment methods. As a non-profit organisation, World History Encyclopedia wanted a solution that was both cost-effective and easy to implement.


World History Encyclopedia selected Stripe Checkout to upgrade its payments experience and accept recurring donations from its readers worldwide. Stripe Billing made it easy to integrate the website’s custom CMS with Stripe’s payments and subscription management system. In just two days, it was able to implement a complete payments page that supports 10 currencies and 3 languages. Additionally, World History Encyclopedia decided to donate a percentage of its profits to fight climate change using Stripe Climate, giving users another incentive to sign up.


Before fully rolling out Stripe Checkout, World History Encyclopedia set up an A/B test to track changes in conversion against its current payments provider over the course of a month. With Stripe Checkout, it saw a 5% increase in funnel conversion. With these results, World History Encyclopedia felt confident in rolling out Stripe Checkout as its primary payments provider.

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