On my webpage, there are two links leading to an introduction/registration page. We want to display different content depending on which link the user clicks. These links are in separate sections of the same page, and we aim to customize the message on the registration page based on the context of the click. I have been advised not to change the URL for SEO reasons.
I am working with rails. Given that the incoming user will have the same referrer regardless of which link they clicked, what is the most effective method to determine which link was utilized to arrive at my page? Is there a practical way to achieve this without modifying the URL?