Radix UI vs VKUI
Head-to-head usage across the sites we track.
Top sites by authority
Radix UI · VKUI · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
58
1
Open Page Rank 8+
775
6
Open Page Rank 7+
2,707
7
Open Page Rank 6+
4,901
7
Open Page Rank 5+
8,028
7
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 · VKUI · share of sites in each country using one or the other
United States
64,366
18
India
42,500
11
Brazil
32,941
8
United Kingdom
23,181
14
Germany
20,788
18
Canada
18,512
9
France
17,927
9
Indonesia
17,208
9
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Radix UI | VKUI |
|---|---|---|
| LCP | 2.4 s | 2.7 s |
| INP | 125 ms | 125 ms |
| CLS | 0 | 0 |
| TTFB | 800 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.