mod_rack vs OpenSSL

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

Top sites by authority

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

United States 136

33,851

Japan 93

26,387

India 64

19,124

Brazil 63

14,179

Germany 65

13,830

Italy 60

13,124

South Korea 35

12,915

United Kingdom 73

12,773

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 OpenSSL sites