The Green Blind Spot 107 companies · measured 2026-09-02

Is that a lot?

One visit to a website is tiny. But the 107 companies ranked here get an estimated 4.1 billion visits a year from search, to the pages I measured. Here is what that adds up to.

1 · One visit

1.68 gCO2 per visit, median company

About a 10-watt LED bulb left on for 20 minutes.

The lightest ranked site, The Guardian: 6.0 minutes. The heaviest, NIO: 1.5 hours.

2 · One company, one year

2.2 tCO2 a year, median company

About driving the average new car sold in Europe 22,800 km. Each block is 1,000 km.

The largest, Amazon: 1,888 t, about 19.5 million km by car, or the electricity of 1,600 Dutch homes for a year. Every ranked company's own comparison is on its page. Yearly figures come from estimated search visits to the pages measured.

3 · All 107 ranked companies, one year

6,956 tCO2 a year, from estimated search visits to the pages measured

About the electricity 5,800 Dutch homes use in a year.

About driving the average new car around the Earth 1,795 times.

Direct, social and paid visits, and pages beyond the ones I measured, are not counted, so the real total is higher.

How these comparisons are worked out, with sources.