HTTP/3 vs iHomefinder IDX

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

Top sites by authority

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

United States 1,141,651

930

India 531,962

14

Brazil 414,021

5

United Kingdom 386,042

6

Indonesia 294,061

6

Germany 289,537

5

Canada 280,974

61

Italy 273,070

3

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 iHomefinder IDX sites