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 1,675

13,022

United Kingdom 613

4,121

Canada 455

3,860

India 464

2,789

Australia 425

2,726

France 398

2,056

Germany 512

1,706

Mexico 258

1,205

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 Product Personalizer sites · All Smile App sites