Thanks a lot for your reply!!!
"If you’re looking to test the color of your CTA, I would suggest you start by building out one page, then creating different variants for the different CTA colors and testing them against each other. "
So I need to create a page, I don’t want to change the layout, content, nav etc of my domain, I just want to test the CTA color on my index page. Which one is the better option for me, create a new page or adding a domain? Do I need to create different landing pages: variant1, variant2, etc and upload it on my server?
One more question, How unbounce will present different variants of my landing page to the visitors?
As I read that if I want to test a single element on a webpage (download button color) then I need to create diffirents variants of that button in the my testing tool. When the test is live, tool will randomly replace the origional button on the page with one of the variants before displaying the page to the visitors.