HTTP/3 vs RSS

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

Top sites by authority

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

United States 1,141,651

887,410

India 531,962

336,391

Brazil 414,021

265,509

United Kingdom 386,042

282,220

Germany 289,537

333,621

Italy 273,070

258,995

France 259,493

267,086

Japan 166,490

319,148

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 HTTP/3 sites · All RSS sites