Prefix-Free vs RSS

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

Top sites by authority

Prefix-Free · 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

Prefix-Free · RSS · share of sites in each country using one or the other

United States 2,475

1,004,186

India 1,315

387,591

Germany 1,184

374,574

Japan 2,082

368,498

United Kingdom 1,041

325,245

France 976

320,975

Italy 782

302,692

Brazil 835

292,059

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 Prefix-Free sites · All RSS sites