American Express vs Mastercard

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

Top sites by authority

American Express · Mastercard · 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

American Express · Mastercard · share of sites in each country using one or the other

United States 132,428

135,747

United Kingdom 48,948

52,625

Canada 35,300

37,821

Germany 33,630

37,542

Australia 31,410

34,444

France 28,473

31,057

India 22,084

23,507

Italy 21,346

23,144

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 American Express sites · All Mastercard sites