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 21,202

194,280

Italy 7,307

120,089

Germany 8,899

109,223

United Kingdom 11,160

96,386

France 8,215

85,328

Netherlands 6,742

71,387

Canada 11,832

64,841

India 9,579

66,986

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, Jun 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