Radix UI vs UnoCSS
Head-to-head usage across the sites we track.
Top sites by authority
Radix UI · UnoCSS · 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
Radix UI · UnoCSS · share of sites in each country using one or the other
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Radix UI | UnoCSS |
|---|---|---|
| LCP | 2.4 s | 2.8 s |
| INP | 100 ms | 125 ms |
| CLS | 0 | 0.05 |
| TTFB | 700 ms | 700 ms |
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.
Radix UI to UnoCSS
| Domain | When |
|---|---|
| gailsbread.co.uk | Feb 2026 |
| twitterviewer.net | Jan 2026 |
UnoCSS to Radix UI
| Domain | When |
|---|---|
| twitterviewer.net | Jan 2026 |
| dev.fun | Jul 2025 |