Apple iCloud Mail vs Microsoft 365

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

Top sites by authority

Apple iCloud Mail · Microsoft 365 · 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

Apple iCloud Mail · Microsoft 365 · share of sites in each country using one or the other

United States 129,767

513,561

United Kingdom 50,050

192,504

Germany 46,068

149,868

Canada 36,709

123,911

India 42,601

114,600

France 29,018

109,542

Netherlands 23,412

111,248

Australia 26,471

104,165

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 Apple iCloud Mail sites · All Microsoft 365 sites