PDF.js vs PWA

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

Top sites by authority

PDF.js · PWA · 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

PDF.js · PWA · share of sites in each country using one or the other

United States 15,609

358,243

Germany 6,445

185,405

Brazil 6,038

181,749

India 10,085

176,225

United Kingdom 6,618

153,237

France 5,813

135,069

Italy 4,647

108,633

Canada 5,369

104,982

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 PDF.js sites · All PWA sites