Apache Traffic Server vs OpenResty

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

Top sites by authority

Apache Traffic Server · OpenResty · 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

Apache Traffic Server · OpenResty · share of sites in each country using one or the other

United States 1,309

43,802

Czechia 4,868

25,029

South Korea 109

24,932

India 396

22,734

Slovakia 474

22,400

Russia 100

17,287

Germany 339

15,995

Vietnam 119

14,913

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 Apache Traffic Server sites · All OpenResty sites