Amazon Webstore vs Cart Functionality

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

Top sites by authority

Amazon Webstore · Cart Functionality · 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

Amazon Webstore · Cart Functionality · share of sites in each country using one or the other

United States 14,949

737,680

United Kingdom 2,092

239,464

India 2,319

207,201

Germany 1,478

196,505

France 1,456

181,709

Canada 2,749

166,395

Brazil 1,284

145,168

Spain 1,359

138,240

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 Amazon Webstore sites · All Cart Functionality sites