React vs UmiJs
Head-to-head usage across the sites we track.
Top sites by authority
React · UmiJs · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
223
3
Open Page Rank 8+
3,802
22
Open Page Rank 7+
15,708
54
Open Page Rank 6+
30,122
89
Open Page Rank 5+
51,158
129
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
React · UmiJs · share of sites in each country using one or the other
United States
651,665
977
India
252,538
582
United Kingdom
210,954
385
Germany
176,161
407
Brazil
168,763
316
Canada
164,079
371
France
159,876
347
Australia
111,932
384
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | React | UmiJs |
|---|---|---|
| LCP | 1.9 s | 2.9 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0.1 |
| TTFB | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
React to UmiJs
| Domain | When |
|---|---|
| xn--hv1a41u.com | Dec 2025 |
| hurricanerelay.net | Sep 2025 |
UmiJs to React
| Domain | When |
|---|---|
| xn--hv1a41u.com | Dec 2025 |
| hurricanerelay.net | Sep 2025 |