Radix UI vs siimple
Head-to-head usage across the sites we track.
Top sites by authority
Radix UI · siimple · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
65
0
Open Page Rank 8+
827
0
Open Page Rank 7+
2,880
0
Open Page Rank 6+
5,215
0
Open Page Rank 5+
8,513
0
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 · siimple · share of sites in each country using one or the other
United States
68,047
1
India
45,024
2
Brazil
35,199
1
United Kingdom
24,696
1
Germany
21,717
1
Canada
19,501
1
France
19,027
2
Indonesia
18,221
1
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Radix UI | siimple |
|---|---|---|
| LCP | 2.4 s | 4.4 s |
| INP | 100 ms | 150 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 3050 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.