CoreUI vs Radix UI
Head-to-head usage across the sites we track.
Top sites by authority
CoreUI · Radix UI · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
58
Open Page Rank 8+
5
775
Open Page Rank 7+
16
2,707
Open Page Rank 6+
39
4,901
Open Page Rank 5+
60
8,028
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
CoreUI · Radix UI · share of sites in each country using one or the other
United States
156
64,366
India
138
42,500
Brazil
78
32,941
United Kingdom
71
23,181
Germany
74
20,788
Canada
59
18,512
France
64
17,927
Indonesia
153
17,208
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | CoreUI | Radix UI |
|---|---|---|
| LCP | 1.8 s | 2.4 s |
| INP | 75 ms | 125 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 800 ms |
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.