Closure Library vs jQuery

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

Top sites by authority

Closure Library · jQuery · 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

Closure Library · jQuery · share of sites in each country using one or the other

United States 7,960

1,645,337

Japan 3,337

705,260

Germany 2,407

672,972

India 5,352

652,564

United Kingdom 2,866

543,018

France 2,590

501,574

Brazil 3,394

468,680

Italy 2,378

448,261

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 Closure Library sites · All jQuery sites