Contact Form 7 vs Kirki Customizer Framework

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

Top sites by authority

Contact Form 7 · Kirki Customizer Framework · 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

Contact Form 7 · Kirki Customizer Framework · share of sites in each country using one or the other

Japan 230,323

30

United States 208,161

238

India 131,722

133

Italy 124,689

109

Germany 109,816

85

Spain 103,856

90

France 101,458

84

United Kingdom 90,771

74

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, Jun 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 Contact Form 7 sites · All Kirki Customizer Framework sites