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Created: August 17th 2015


What is secureConnectionStart?

  • The metric secureConnectionStart is the moment in time immediately before the handshake process to secure the connection.
connectstart, arrow, clock, and browser

Why measure secureConnectionStart?

The main purpose of this is to create a more precise measurement of how long the secure handshake process takes.

Establishing the secure connection time

The TCP connection has three main timestamps that browsers provide. They are connectStart, secureConnectionStart 1 and connectEnd.

connectstart, secureconnectionstart and connectend

If we subtract secureConnectionStart from connectEnd we will have the SSL time.

SSL time = connectEnd - secureConnectionStart

Patrick Sexton by