Ookla Speedtest Custom vs Slider Revolution

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

Top sites by authority

Ookla Speedtest Custom · Slider Revolution · 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

Ookla Speedtest Custom · Slider Revolution · share of sites in each country using one or the other

United States 297

98,993

Italy 93

53,744

India 134

52,083

Spain 104

41,528

Germany 101

40,347

Brazil 374

32,860

France 93

32,105

United Kingdom 102

30,835

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 Ookla Speedtest Custom sites · All Slider Revolution sites