bluewin.ch scores D — 2,272 g CO₂ per million pageviews, 1.4× the DACH average, with 36% of that being tracking overhead rather than ad-serving.
Ad-relevant
2272
g CO₂ / 1M pageviews
Ad-serving only
1446
g CO₂ / 1M pageviews
27
kg CO₂ / year at 1M pageviews per month
20
% cleaner than the DACH index
36
% 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 →