GOV.UK Elements vs Radix UI
Head-to-head usage across the sites we track.
Top sites by authority
GOV.UK Elements · Radix UI · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
65
Open Page Rank 8+
3
827
Open Page Rank 7+
4
2,880
Open Page Rank 6+
5
5,215
Open Page Rank 5+
5
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
GOV.UK Elements · Radix UI · share of sites in each country using one or the other
United States
12
68,047
India
10
45,024
Brazil
8
35,199
United Kingdom
17
24,696
Germany
10
21,717
Canada
11
19,501
France
10
19,027
Indonesia
7
18,221
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | GOV.UK Elements | Radix UI |
|---|---|---|
| LCP | 1.3 s | 2.4 s |
| INP | 50 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.