Google Call Conversion Tracking vs Site Kit

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

Top sites by authority

Google Call Conversion Tracking · Site Kit · 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

Google Call Conversion Tracking · Site Kit · share of sites in each country using one or the other

United States 53,592

191,744

India 8,987

94,995

United Kingdom 11,413

64,452

Japan 1,601

73,790

Brazil 3,220

71,181

France 4,527

63,629

Spain 3,680

63,132

Italy 3,183

58,351

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 Google Call Conversion Tracking sites · All Site Kit sites