**Non-persistent** (a.k.a. HTTP 1.0) is one of two types of HTTP connections. In non-persistent HTTP, a new client-server connection is established every time a client requests a response object from the server.

> Read more about persistent and non-persistent HTTP [here](https://www.educative.io/answers/non-persistent-vs-persistent-http).  


The response time is determined by making an HTTP GET request to the web page URL and measuring the time it takes for the first object to be returned. 


# Formula 

$response\ time = 2RTT + transmit\ time$

Where *​RTT* is the #key# round-trip time: The time it takes for a packet to go from the client to the server and then back to the client. #key# to set up the initial TCP connection, and *transmit time* is the time it takes for the requests object to be returned.  


Calculate response time for a webpage with non-persistent HTTP

Response time for non-persistent HTTP includes 2*RTT for the initial TCP connection and the object transmit time.