Hi Arun and Abhijeet.Thanks for the advice. We're using a DTM but through Tealium, not Adobe. We've done a few more tests and yes, it's looking like bot traffic.Many thanks for pointing us in the right direction.

Has anyone seen mcvisid with all zeros eg (00000000000000000000000000000000000000) and know what the issue may be or how to debug the cause?Many thanksMatt