CallRail vs Site Kit

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

Top sites by authority

CallRail · 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

CallRail · Site Kit · share of sites in each country using one or the other

United States 39,310

194,442

India 2,360

96,669

Brazil 388

73,670

Japan 162

73,684

United Kingdom 1,477

63,934

France 315

62,421

Spain 270

58,678

Italy 182

55,218

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 CallRail sites · All Site Kit sites