Jetpack vs Speculative Loading

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

Top sites by authority

Jetpack · Speculative Loading · 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

Jetpack · Speculative Loading · share of sites in each country using one or the other

United States 56,925

3,913

India 18,337

1,729

United Kingdom 16,888

1,672

Japan 15,245

792

France 14,004

1,324

Canada 11,584

1,074

Germany 11,081

1,452

Italy 11,467

950

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 Jetpack sites · All Speculative Loading sites