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
6
Open Page Rank 8+
3,861
29
Open Page Rank 7+
15,766
61
Open Page Rank 6+
30,165
97
Open Page Rank 5+
51,195
132
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
595,277
821
India
243,719
544
United Kingdom
194,085
352
Brazil
164,323
300
Germany
162,915
346
Canada
148,255
320
France
143,971
302
Spain
106,955
265
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | React | UmiJs |
|---|---|---|
| LCP | 1.9 s | 2.7 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0.05 |
| TTFB | 700 ms | 700 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.
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 |
|---|---|
| waspcs.com | Jun 2026 |
| xn--hv1a41u.com | Dec 2025 |
UmiJs to React
| Domain | When |
|---|---|
| xn--hv1a41u.com | Dec 2025 |