if you use different domains (e.g. for marketing purposes) and one Mautic instance there is one raising problem: You serve 3rd party cookies, which will automatically be blocked by Firefox already and Chrome soon.
Here is an approach I successfully used with Matomo. I would like to find out, if this may also work for Mautic.
- installing Mautic on ma.DOMAIN-A.com, embedded Mautic script will serve 1st party cookies to DOMAIN-A.com, but its a 3rd party cookie for DOMAIN-B.com
- adding CNAMES which handles ma.DOMAIN-B.com as an alias to ma.DOMAIN-A.com
- extending SSL Certificate (via SAN - Subject Alternate Name) on ma.DOMAIN-A.com to be valid for ma.DOMAIN-B.com as well.
- taking the tracking script of ma.DOMAIN-A.com, changing the domain to ma.DOMAIN-B.com and using it on DOMAIN-B.com
Mautic should now work for both Domains. Do you see any issues with this concept? Its working with Matomo. In case it works, I will write an Howto for you.
(Separating leads is not considered here - its just for the purpose of a company using several domains for the same audience.)