I want to implement a cookie to store the values of the UTMs when a lead hits our website from our paid campaigns. A cookie will help me preserve the value of those utms even if a lead doesn't convert right away. I'll set up all my forms so that when the lead comes back and fills out a form, the hidden fields in my form will pull the data from the cookie and store them in our database.
The problem I'm facing right now is that I have marketo forms embedded in both my corporate website (https://www.example.com) and in maketo landing pages (https://go.example.com) which have different domains. My web team let me know that cookies are domain-specific. So if the cookie is created when a lead visits my website (www.example.com), that cookie won't be readable from a form living in a marketo landing page (go.example.com) and viceversa.
Has any of you faced this situation? How did you solve it?
Thanks in advance for your help!