Automatic.css vs Radix UI
Head-to-head usage across the sites we track.
Top sites by authority
Automatic.css · Radix UI · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
58
Open Page Rank 8+
11
775
Open Page Rank 7+
39
2,707
Open Page Rank 6+
63
4,901
Open Page Rank 5+
125
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
Automatic.css · Radix UI · share of sites in each country using one or the other
United States
1,725
64,366
India
303
42,500
Brazil
112
32,941
United Kingdom
714
23,181
Germany
820
20,788
Canada
399
18,512
France
243
17,927
Indonesia
98
17,208
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Automatic.css | Radix UI |
|---|---|---|
| LCP | 2 s | 2.4 s |
| INP | 75 ms | 125 ms |
| CLS | 0 | 0 |
| TTFB | 1100 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Automatic.css to Radix UI
| Domain | When |
|---|---|
| serey.art | Jul 2026 |
| raumforscher.online | May 2026 |
| aiko.eus | Jan 2026 |
Radix UI to Automatic.css
| Domain | When |
|---|---|
| agardenpatch.com | Jul 2026 |
| freyameds.com | Mar 2026 |
| benso.net | Mar 2026 |
| serenevalleyfrenchies.com | Dec 2025 |