Trigger an interaction when a user is landing on your site with a custom url

Hi,

I haven’t started building this yet, but I’m wondering if anyone has any experience with this…

Basically, I want to fire a small banner/pop up on the landing page of our site when the user is coming from a specific URL with a utm tag.

Is this possible? I suspect Javascript would be required?

Appreciate any help!

Thanks


Here is my public share link: LINK
(how to access public share link)