Getting different mid values across domains

[#1]

We have marketing cloud visitor id  (mid)  setup on all our domains.

But, what we are seeing is that a different mid gets setup for every domain.

What we are noticing is that :
1.   Org Id is the same in each case
2.   mid is different in each.

Any ideas on what we might be missing out on here!!

Thanks,
Deepak 

[#2 · Accepted solution]

Dear Deepak,

Your first domain supports cookie : www.stubhub.com

You second domain didn't : www.stubhub.co.uk

For your first domain, Cookie Domain Period is not needed since the Domain Period by default is 2. But for your second domain, it is 3 and you have to set this inside Marketing Cloud ID Service. Please do so and test it.

Link for knowledge : s.cookieDomainPeriods

Thank You

Arun

[#3]

Hey Arun,

Try these

www.stubhub.com
www.stubhub.co.uk

[#4]

Dear Deepak,

Make sure that your domains support Cookies. If yes, it should never be the case.

Can you share your public domains to verify?

Thank You

Arun