Today we’re sharing the story of how we redesigned Turnstile and Challenge Pages. It's a story told in three parts, by three of us: the design process and research that shaped our decisions (Leo), the engineering challenge of deploying changes at unprecedented scale (Ana), and the measurable impact on billions of users (Marina). https://blog.cloudflare.com/the-most-seen-ui-on-the-internet-redesigning-turnstile-and-challenge-pages/