mod_perl vs mod_ssl

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

Top sites by authority

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

United States 1,857

2,061

Japan 1,045

2,538

India 1,162

1,063

South Korea 436

1,782

Germany 828

1,065

Indonesia 1,018

871

United Kingdom 840

912

France 704

986

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, Sep 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_perl sites · All mod_ssl sites