The Shopify UCP Guide: What 3,200 Monitored...

Shopify accounts for the overwhelming majority of UCP adoption. Of the 2,826 verified UCP merchants in our monitoring dataset, 2,812 — over 99.5% — are on Shopify. That's not a coincidence — Shopify co-developed the Universal Commerce Protocol with Google and shipped native UCP support before most platforms had even published a roadmap. But what surprised us as we grew our monitoring dataset past 3,200 domains was how significant the gap is between "technically passes" and "performs well for AI