A deep dive into the Encrypted Client Hello, a standard that encrypts privacy-sensitive parameters sent by the client, as part of the TLS handshake.| The Cloudflare Blog
Encrypted Client Hello (ECH) is a security feature in major Web browsers, available in Firefox 118 and enabled by default in Firefox 119. Learn more.| support.mozilla.org
Network administrators may configure their networks to modify DNS requests for the following special-purpose domain, called a ''canary domain''.| support.mozilla.org