Pico CSS vs Radix UI
Head-to-head usage across the sites we track.
Top sites by authority
Pico CSS · Radix UI · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
4
65
Open Page Rank 8+
15
827
Open Page Rank 7+
21
2,880
Open Page Rank 6+
27
5,215
Open Page Rank 5+
34
8,513
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Pico CSS · Radix UI · share of sites in each country using one or the other
United States
138
68,047
India
101
45,024
Brazil
83
35,199
United Kingdom
72
24,696
Germany
77
21,717
Canada
73
19,501
France
80
19,027
Indonesia
74
18,221
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Pico CSS | Radix UI |
|---|---|---|
| LCP | 1.4 s | 2.4 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 800 ms |
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.
Pico CSS to Radix UI
| Domain | When |
|---|---|
| linklyhq.com | Jun 2026 |