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 2,140

887,410

India 1,156

336,391

Germany 1,053

333,621

Japan 1,788

319,148

United Kingdom 892

282,220

France 808

267,086

Brazil 753

265,509

Italy 655

258,995

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 Prefix-Free sites · All RSS sites