Sponsored by Vanta – Get $1,000 Off Compliance Automation → vanta.com/startupradio E-commerce is broken — especially at checkout. And Julian Pfeiffer, founder of KeyOne, believes he has the fix. At just 15, he started building what would become the IDAN system, a digital identity for online checkout. In this episode, we explore how the IDAN (International Delivery Address Number) removes friction, boosts conversion, and improves security across the customer journey. Julian’s story begins not in a startup incubator, but on the football pitch as a youth player for Eintracht Frankfurt. From there, he taught himself business informatics, launched a company during the pandemic, and developed a product that’s now gaining serious traction with online merchants. Why listen? Whether you're a tech founder, e-commerce executive, or startup investor, this conversation offers unique insight into solving one of digital retail’s most expensive pain points — failed and abandoned checkouts. Plus: future integrations with What3Words, loyalty programs like Payback, and AI-driven delivery optimization. 🧠 What You’ll Learn in This Episode: What the IDAN system is and how it works Why poor address data costs e-commerce billions annually How KeyOne improves checkout speed, accuracy, and trust Julian’s startup lessons from launching as a teen How KeyOne is planning to integrate AI and scale across markets The balance between short-term sales and long-term innovation ⏱️ Timestamps: 0:00 – Intro & Episode Setup 1:34 – Julian’s Entrepreneurial Journey 5:22 – The “Chicken or Egg” Challenge in Startup GTM 7:12 – Deep Dive: How the IDAN System Works 10:56 – The Future of E-Commerce and Checkout 13:35 – Benefits for Merchants and Consumers 18:08 – Partnerships, Expansion Plans & AI Integration 21:48 – From Football to Founder: Julian’s Growth Path 💼 Guest: Julian Pfeiffer, Founder of KeyOne 🌐 https://keyone.me 🔗 Julian on LinkedIn 🎧 Host: Joern “Joe” Menninger, Startuprad.io 🌐 https://www.startuprad.io 💬 Call to Action: 👉 Subscribe to Startuprad.io for more insider conversations with top startup founders, tech execs, and scale-up disruptors. 🧠 Share this episode with a founder, product lead, or investor interested in checkout tech and B2B fintech. ⭐️ Enjoyed this episode? Leave a 5-star review on Apple Podcasts — it helps others discover our work. 🔗 Visit our website for transcripts, resources, and more: https://www.startuprad.io