mod_ssl vs mod_wsgi

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

Top sites by authority

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

Japan 2,600

815

United States 2,033

1,313

South Korea 1,818

493

India 1,084

962

Germany 1,087

674

United Kingdom 924

645

Indonesia 884

666

France 956

557

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, Aug 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_ssl sites · All mod_wsgi sites