On marktplaats.nl, advertising and tracking add ≈ 1,875 g CO₂ per million pageviews (1,875 g from ad-serving alone) — 0.4× the index average, cleaner than 48% of the sites we measure.
Ad-relevant
1875
g CO₂ / 1M pageviews
Ad-serving only
1875
g CO₂ / 1M pageviews
23
kg CO₂ / year at 1M pageviews per month
48
% cleaner than the DACH index
0
% 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 →