Alia vs Vitals

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

Top sites by authority

Alia · 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

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

United States 3,622

3,310

United Kingdom 1,414

1,382

Canada 1,630

993

India 1,031

1,273

Australia 1,108

956

Germany 637

992

France 519

905

Spain 464

670

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 Alia sites · All Vitals sites