RequireJS vs RxJS

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

Top sites by authority

RequireJS · RxJS · 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

RequireJS · RxJS · share of sites in each country using one or the other

United States 158,248

4,073

United Kingdom 46,226

1,363

Germany 42,885

1,240

India 35,970

1,398

Canada 34,211

1,132

France 31,966

1,063

Brazil 29,342

1,013

Australia 22,193

774

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 RequireJS sites · All RxJS sites