RequireJS vs UmiJs
Head-to-head usage across the sites we track.
Top sites by authority
RequireJS · UmiJs · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
65
6
Open Page Rank 8+
994
31
Open Page Rank 7+
3,258
62
Open Page Rank 6+
5,572
97
Open Page Rank 5+
8,483
128
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
RequireJS · UmiJs · share of sites in each country using one or the other
United States
126,047
821
United Kingdom
39,713
352
Germany
37,781
346
India
30,133
544
Canada
28,265
320
France
27,527
302
Brazil
25,881
300
Spain
19,648
265
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | RequireJS | UmiJs |
|---|---|---|
| LCP | 1.6 s | 2.7 s |
| INP | 50 ms | 100 ms |
| CLS | 0 | 0.05 |
| TTFB | 600 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.