Android 17 adds ECH support to hide website domains from ISPs
Google's next Android release will support Encrypted Client Hello, a TLS extension that encrypts the hostname portion of the connection handshake so it can no longer be read in plain text. Paired with private DNS, this stops internet providers and Wi-Fi operators from easily seeing which sites or apps a device is contacting. The feature will be on by default for apps targeting Android 17 that use updated networking libraries like OkHttp, WebView, or HttpEngine.