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 9,565

158,248

United Kingdom 2,841

46,226

Germany 2,777

42,885

India 4,379

35,970

Canada 3,027

34,211

France 2,462

31,966

Brazil 1,651

29,342

Australia 2,053

22,193

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 Adobe Client Data Layer sites · All RequireJS sites