Discrepancies increased significantly recently
We are seeing significant discrepancies after a quiet patch on this front.
This is across all 3rd party vendors (flashtalking, Mediamind, DFA) and is potentially down to ad-blocking/further viewability analytic being applied as far as we can see. We use DFPX.
Is anyone else experiencing these issues?
This has only reared it's head again this year for us.