Long: false-start Help: Enable TLS False Start Protocols: TLS Added: 7.42.0 Category: tls Example: --false-start $URL See-also: tcp-fastopen --- Tells curl to use false start during the TLS handshake. False start is a mode where a TLS client will start sending application data before verifying the server's Finished message, thus saving a round trip when performing a full handshake. This is currently only implemented in the NSS and Secure Transport (on iOS 7.0 or later, or OS X 10.9 or later) backends.