33Across vs Microsoft Advertising

Head-to-head usage across the sites we track.

Top sites by authority

33Across · Microsoft Advertising · how many of each technology's sites sit in the web's highest authority tiers

Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.

By country

33Across · Microsoft Advertising · share of sites in each country using one or the other

United States 12,564

180,700

Italy 5,104

113,422

Germany 5,790

98,787

United Kingdom 6,815

87,840

France 5,307

76,969

Netherlands 4,674

64,450

India 6,037

59,005

Canada 6,938

57,987

Audience countries from the Chrome UX Report, top markets of either technology.

Real user performance

Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.

Sites that switched

Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.

All 33Across sites · All Microsoft Advertising sites