Hi @KSergieva11,
I’ll do my best to try and explain, both options depend on how you have your link setup to handle the CTAs on your website as there’s primarily two different ways to track a CTA. Both options essentially need a way to know that the link has been clicked and who clicked it. The first option is via a redirect, this means that when they click the link they go to a specific URL, for example sake, let’s say Redirect.com this link acts as a middle man that takes the users details and where they came from. Once this information is gathered it redirects them to the end url, let’s say www.whereyouwantedthemtogo.com. The benefit of this redirect is you can use different URLs for different sources without having to change the end destination allowing you to compare which source gets you the most clicks. So for example you could have Redirect.com for email clicks and Redirect.com for socialmedia but the end user would always still end up at www.whereyouwantedthemtogo.com. The second way does not move the visitor through a different link first; instead, it keeps track of the click directly through the visitor’s internet browser as soon as they click, letting the CTA link work more smoothly by taking them straight to the intended page without any detour. However, this requires more coding knowledge and compatibility with each browser. Therefor the first option is the most common. I hope this helps clarrify.