BEM vs RequireJS
Head-to-head usage across the sites we track.
Top sites by authority
BEM · RequireJS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
64
Open Page Rank 8+
12
1,028
Open Page Rank 7+
24
3,327
Open Page Rank 6+
51
5,673
Open Page Rank 5+
88
8,648
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
BEM · RequireJS · share of sites in each country using one or the other
United States
251
132,201
United Kingdom
187
40,149
Germany
317
38,420
India
89
30,963
Canada
72
29,177
France
133
27,073
Brazil
58
26,685
Australia
60
19,263
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | BEM | RequireJS |
|---|---|---|
| LCP | 1.7 s | 1.5 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 600 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.