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 7,941

1,602,536

Japan 3,359

694,689

Germany 2,360

657,374

India 5,225

637,845

United Kingdom 2,878

540,397

France 2,650

506,084

Italy 2,538

464,759

Brazil 3,364

453,310

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 Closure Library sites · All jQuery sites