Prism vs RSS

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

Top sites by authority

Prism · 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

Prism · RSS · share of sites in each country using one or the other

United States 24,601

1,004,186

India 18,002

387,591

Germany 12,114

374,574

Japan 13,077

368,498

United Kingdom 11,764

325,245

France 10,238

320,975

Italy 8,574

302,692

Brazil 10,044

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 Prism sites · All RSS sites