On olx.pl, advertising and tracking add ≈ 9,393 g CO₂ per million pageviews (4,097 g from ad-serving alone) — 1.8× the index average, cleaner than 17% of the sites we measure.
Ad-relevant
9393
g CO₂ / 1M pageviews
Ad-serving only
4097
g CO₂ / 1M pageviews
113
kg CO₂ / year at 1M pageviews per month
17
% cleaner than the DACH index
56
% 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 →