November 2026
How to measure market share online without a traffic model
Share of audience from panel behaviour, why visits mislead, and what a passport adds.
Blog
Notes on measuring digital markets: methods, definitions and what the numbers actually mean.
November 2026
What is a data clean room, and why market intelligence needs one
How pseudonymous panels are processed, what leaves the room and what never does.
December 2026
How accurate are web traffic estimates?
Models, panels and search indexes compared on the questions they can and cannot answer.