On jbhifi.com.au, advertising and tracking add ≈ 25,626 g CO₂ per million pageviews (1,899 g from ad-serving alone) — 4.9× the index average, cleaner than 4% of the sites we measure.
Ad-relevant
25626
g CO₂ / 1M pageviews
Ad-serving only
1899
g CO₂ / 1M pageviews
308
kg CO₂ / year at 1M pageviews per month
4
% cleaner than the DACH index
93
% 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 →