The top online marketplaces in the world sold $3.23 trillion in goods in 2021. Sales through platforms like those operated by Alibaba, Amazon, eBay and others accounted for two-thirds of global ecommerce sales last year, according to Digital Commerce 360's analysis.

The top online marketplaces in the world sold $2.67 trillion in 2020. Sales on marketplace sites, like those operated by Alibaba, Amazon, eBay and others, accounted for 62% of global web sales in 2020, according to Digital Commerce 360's analysis. And although the top three marketplaces—Taobao, Tmall and Amazon—account for nearly two-thirds of the $2.67 trillion in GMV of the Top 100, several other marketplaces around the world grew nearly 100% last year—including Etsy in the U.S. and Ozon in Russia. Here are the key findings of a new in-depth analysis of the just-released 2021 Digital Commerce 360 Top 100 Online Marketplaces ranking.