I'm not technically literate, so take what I say with a grain of salt.

But, my company does something very similar with Hubspot (which is a shitty platform btw. Hubspot is trash, but I digress). Basically, Hubspot tags a user's IP address and knows whenever they visit our website. If it's a big prospective customer, the sales team gets an alert about the visit, then typically waits a few minutes and makes the phone call. For our smaller deals we also have auto-responder emails for this.

Further, it logs all the visits. So, at any time I can pull up a list of known IP addresses that have visited our website and see analytics for their visits. Hell, they can even tell me how many times a given company has checked our website, even if they've never filled out a form or talked to us. It just knows that a given IP belongs to that company. Really ironic that we get tons of hits from the Dept. of Defense.