Product Personalizer vs Smile App

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

Top sites by authority

Product Personalizer · Smile App · 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

Product Personalizer · Smile App · share of sites in each country using one or the other

United States 1,503

11,797

United Kingdom 532

3,763

Canada 405

3,449

India 386

2,463

Australia 367

2,463

France 350

1,853

Germany 449

1,613

Spain 213

1,136

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 Product Personalizer sites · All Smile App sites