AD-CARBON FOOTPRINT · DACH INDEX

chatgpt.com

Other
US
B
Ad-carbon grade
On chatgpt.com, advertising and tracking add ≈ 849 g CO₂ per million pageviews (849 g from ad-serving alone) — 0.2× the index average, cleaner than 63% of the sites we measure.
Ad-relevant
849
g CO₂ / 1M pageviews
Ad-serving only
849
g CO₂ / 1M pageviews
10
kg CO₂ / year at 1M pageviews per month
63
% 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 →

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