On imdb.com, advertising and tracking add ≈ 10,318 g CO₂ per million pageviews (6,484 g from ad-serving alone) — 2.0× the index average, cleaner than 15% of the sites we measure.
Ad-relevant
10318
g CO₂ / 1M pageviews
Ad-serving only
6484
g CO₂ / 1M pageviews
124
kg CO₂ / year at 1M pageviews per month
15
% cleaner than the DACH index
37
% 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 →