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 126,047

3,259

United Kingdom 39,713

1,403

Germany 37,781

1,303

India 30,133

1,533

Canada 28,265

1,134

France 27,527

1,090

Brazil 25,881

1,101

Spain 19,648

992

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 RequireJS sites · All RxJS sites