Lazy.js vs React

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

Detections for Lazy.js end in May 2020. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.

Top sites by authority

Lazy.js · React · 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

Lazy.js · React · share of sites in each country using one or the other

United States 962

595,277

India 559

243,719

United Kingdom 600

194,085

Brazil 400

164,323

Germany 613

162,915

Canada 530

148,255

France 471

143,971

Spain 494

106,955

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 Lazy.js sites · All React sites