On myswitzerland.com, advertising and tracking add ≈ 1,524 g CO₂ per million pageviews (346 g from ad-serving alone) — 0.3× the index average, cleaner than 52% of the sites we measure.
Ad-relevant
1524
g CO₂ / 1M pageviews
Ad-serving only
346
g CO₂ / 1M pageviews
18
kg CO₂ / year at 1M pageviews per month
52
% cleaner than the DACH index
77
% of the footprint is tracking overhead, not ad-serving
Measured on the live electricity grid from public page-load data — an estimate of a site's ad-tech architecture, not a measured campaign figure. See the methodology →