Super Page Cache vs Varnish

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

Top sites by authority

Super Page Cache · Varnish · 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

Super Page Cache · Varnish · share of sites in each country using one or the other

United States 2,797

85,897

Germany 906

32,786

United Kingdom 1,184

27,738

India 1,376

26,616

France 813

26,979

Canada 921

21,857

Netherlands 630

21,806

Italy 761

19,616

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 Super Page Cache sites · All Varnish sites