mod_rack vs mod_ssl

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

Top sites by authority

mod_rack · mod_ssl · 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

mod_rack · mod_ssl · share of sites in each country using one or the other

Japan 93

3,079

United States 136

2,338

South Korea 35

2,113

Germany 65

1,266

India 64

1,219

France 53

1,150

United Kingdom 73

1,049

Indonesia 60

1,035

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 mod_rack sites · All mod_ssl sites