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+
13
1,009
Open Page Rank 7+
26
3,268
Open Page Rank 6+
53
5,565
Open Page Rank 5+
90
8,483
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
244
126,047
United Kingdom
212
39,713
Germany
305
37,781
India
101
30,133
Canada
80
28,265
France
162
27,527
Brazil
61
25,881
Spain
103
19,648
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | BEM | RequireJS |
|---|---|---|
| LCP | 1.7 s | 1.6 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 600 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.