Adobe Client Data Layer vs RequireJS

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

Top sites by authority

Adobe Client Data Layer · RequireJS · 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

Adobe Client Data Layer · RequireJS · share of sites in each country using one or the other

United States 8,473

132,201

United Kingdom 2,584

40,149

Germany 2,490

38,420

India 4,090

30,963

Canada 2,701

29,177

France 2,073

27,073

Brazil 1,523

26,685

Australia 1,830

19,263

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, Aug 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 Adobe Client Data Layer sites · All RequireJS sites