HTTP/3 vs parcel

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

Top sites by authority

HTTP/3 · parcel · 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

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

United States 1,284,004

19,282

India 592,975

7,013

United Kingdom 436,501

8,145

Brazil 418,679

4,936

Indonesia 328,375

3,140

Canada 321,328

8,279

Germany 316,957

6,018

Italy 305,727

3,769

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 HTTP/3 sites · All parcel sites