How to install multiple versions of the same browser?

Question

Google Chrome

Such a problem.
There is a site. According to the owner, the calculator script does not work on certain versions of chrome and ie.
How to install multiple versions of the same browser?

Answer 1

https://developer.microsoft.com/en-us/microsoft-edge/

Answer 2

www.my-debugbar.com/wiki/IETester/HomePage
https://www.browserling.com/
browsershots.org
ipinfo.info/netrenderer/index.php
https://habrahabr.ru/post/111748/