GSAP vs JSS

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

Top sites by authority

GSAP · JSS · 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

GSAP · JSS · share of sites in each country using one or the other

United States 336,193

25,360

India 120,243

10,169

United Kingdom 105,254

7,619

Germany 103,146

6,843

France 94,934

7,737

Italy 90,969

4,764

Brazil 81,278

7,526

Canada 75,336

6,958

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 GSAP sites · All JSS sites