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
704
Open Page Rank 7+
15
2,503
Open Page Rank 6+
35
4,541
Open Page Rank 5+
54
7,397
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
183
61,866
India
148
41,088
Brazil
89
30,607
United Kingdom
74
22,843
Germany
93
20,404
Canada
72
18,587
France
82
18,238
Indonesia
166
17,593
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 | 100 ms |
| CLS | 0 | 0 |
| TTFB | 800 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.