History vs HTTP/3

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

Top sites by authority

History · HTTP/3 · 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

History · HTTP/3 · share of sites in each country using one or the other

United States 806

1,284,004

India 161

592,975

United Kingdom 149

436,501

Brazil 1,800

418,679

Indonesia 68

328,375

Canada 194

321,328

Germany 171

316,957

Italy 168

305,727

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 History sites · All HTTP/3 sites