Access an external website and trigger a button click

Access an external website and trigger a button click

Is it possible to use JQuery and access an external website and trigger a button click on that site?

For example on this site there is the button "Click me!":
https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_button_test

Would it be possible to access that site and click the button?
And if so, how would that be done?