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 357

114,095

Italy 102

64,029

India 147

60,980

Spain 113

49,551

Germany 115

45,596

France 105

38,896

Brazil 427

36,286

United Kingdom 115

35,902

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, Jun 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