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 16,271

819,640

United Kingdom 2,287

265,245

India 2,558

226,526

Germany 1,627

217,355

France 1,705

207,855

Canada 2,953

188,032

Brazil 1,359

158,050

Italy 1,305

154,275

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 Amazon Webstore sites · All Cart Functionality sites