Cloudflare supports ESNI. AFAIK none of the mainstream browsers support ESNI by default. I believe the latest build of Firefox [1] may have an option in about

Cloudflare supports ESNI. AFAIK none of the mainstream browsers support ESNI by default. I believe the latest build of Firefox [1] may have an option in about:config to enable it. One could check if a website supports ESNI with [2] ESNICheck. Support for ESNI is still subject to change. [3] [1] - https://blog.cloudflare.com/encrypt-that-sni-firefox-edition/ https://blog.cloudflare.com/encrypt-that-sni-firefox-edition... [2] - https://esnicheck.com/ https://esnicheck.com/ [3] - https://serverfault.com/questions/976377/how-can-i-set-up-encrypted-sni-on-my-own-servers https://serverfault.com/questions/976377/how-can-i-set-up-en...