On olx.com.br, advertising and tracking add ≈ 3,539 g CO₂ per million pageviews (1,301 g from ad-serving alone) — 0.7× the index average, cleaner than 38% of the sites we measure.
Ad-relevant
3539
g CO₂ / 1M pageviews
Ad-serving only
1301
g CO₂ / 1M pageviews
42
kg CO₂ / year at 1M pageviews per month
38
% cleaner than the DACH index
63
% 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 →