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 2,095

865,432

India 1,142

329,297

Germany 1,030

327,527

Japan 1,744

314,790

United Kingdom 893

281,660

Italy 685

272,529

France 814

271,657

Brazil 750

255,443

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, Sep 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