Similarweb's Digital 100 Report Finds "Serious Utility" Drives Fastest-Growing Websites and Apps in 2025

Similarweb's Annual Digital 100 Report finds ChatGPT as the fastest-growing website among large sites and apps, delivering "serious utility" to users. The report ranks businesses based on digital audience growth, with ChatGPT leading the way in both web and app growth. The report highlights the importance of practical uses of technology, such as AI-augmented productivity, for digital businesses gaining traction. Winners are determined by an objective analysis of billions of digital signals across 100 million companies.