a3 Lazy Load vs Contact Form 7

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

Top sites by authority

a3 Lazy Load · Contact Form 7 · 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

a3 Lazy Load · Contact Form 7 · share of sites in each country using one or the other

Japan 3,192

199,815

United States 3,062

181,373

India 1,493

113,364

Italy 1,076

105,059

Germany 2,117

97,345

Spain 1,420

87,110

France 1,323

82,899

United Kingdom 1,212

78,201

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 a3 Lazy Load sites · All Contact Form 7 sites