Jmeter - getting the exact accessibility time of a website

I am new to Jmeter (performace testing)

Is there a way in jmeter where i can get the exact accessibility time of a website i created using docker image? As of now i am using timer to mesure the accessibility time(time of successful checking of website minus the creation if website using docker image) but it will continue to execute the HTTP request until all the HTTP is executed.

The scenario that i want is like this: I will create a website using docker image then i will have to check the exact accessibility time(from creating up to launching/checking the site). Once the the requirement is met the timer will stop and it will give me the exact time on when it is actually up. This is the sample of my thread that i am using: enter image description here

Please help me thank you!!1