Revy vs Vitals

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

Top sites by authority

Revy · Vitals · 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

Revy · Vitals · share of sites in each country using one or the other

United States 1,863

3,310

United Kingdom 770

1,382

India 546

1,273

Canada 661

993

Australia 542

956

Germany 446

992

France 363

905

Italy 475

674

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 Revy sites · All Vitals sites