How to automate checking for changes on a page?

Question

Automation

There is a page with a button. It is necessary to periodically press the button and, depending on the results obtained, either repeat the action or somehow signal.

Chrome browser is used - others are not suitable. I know that there are applications for the browser. But I can't figure out how to do it in them. Maybe someone will give a hint?

Answer 1

imacros for example
and others like that