On akc.org, advertising and tracking add ≈ 18,285 g CO₂ per million pageviews (6,517 g from ad-serving alone) — 3.5× the index average, cleaner than 8% of the sites we measure.
Ad-relevant
18285
g CO₂ / 1M pageviews
Ad-serving only
6517
g CO₂ / 1M pageviews
219
kg CO₂ / year at 1M pageviews per month
8
% cleaner than the DACH index
64
% 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 →