Contact Form 7 vs Optimization Detective

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

Top sites by authority

Contact Form 7 · Optimization Detective · 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 · Optimization Detective · share of sites in each country using one or the other

Japan 230,323

763

United States 208,161

3,621

India 131,722

1,819

Italy 124,689

985

Germany 109,816

1,330

Spain 103,856

919

France 101,458

1,268

United Kingdom 90,771

1,422

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 Optimization Detective sites