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 1,287

42,667

Czechia 4,827

25,453

South Korea 117

25,476

Slovakia 459

22,904

India 384

22,436

Russia 103

17,569

Germany 313

15,296

Vietnam 112

14,576

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 Apache Traffic Server sites · All OpenResty sites