If you want to track your visitors across multiple sub-domains, you can add a domain name parameter to $A1Config to make the user visible across sub-domains :
<script>
var $A1Config = {
key: “yourKeyHere”,
tenantId: 123,
domain: “mydomain.com”
};
</script>
Note that using an invalid domain (such as the example above on any website
other than *.mydomain.com
) will result in the cookie silently failing to
write, which will prevent us from tracking that user on that website.