Bootstrap vs Milligram
Head-to-head usage across the sites we track.
Top sites by authority
Bootstrap · Milligram · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
181
0
Open Page Rank 8+
3,817
7
Open Page Rank 7+
18,570
12
Open Page Rank 6+
39,005
17
Open Page Rank 5+
72,373
25
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Bootstrap · Milligram · share of sites in each country using one or the other
United States
758,929
119
India
368,409
59
Germany
277,428
59
United Kingdom
255,833
57
Brazil
241,343
57
France
234,434
53
Italy
222,549
42
Spain
183,194
55
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Bootstrap | Milligram |
|---|---|---|
| LCP | 1.8 s | 1.5 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 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.