Bootstrap vs Bulma
Head-to-head usage across the sites we track.
Top sites by authority
Bootstrap · Bulma · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
180
11
Open Page Rank 8+
3,860
55
Open Page Rank 7+
18,993
106
Open Page Rank 6+
40,203
165
Open Page Rank 5+
74,817
240
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Bootstrap · Bulma · share of sites in each country using one or the other
United States
886,770
1,457
India
429,293
812
Germany
322,762
707
United Kingdom
295,976
681
France
279,130
683
Brazil
273,285
598
Italy
251,088
561
Spain
202,979
548
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Bootstrap | Bulma |
|---|---|---|
| LCP | 1.8 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Jun 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.
Bootstrap to Bulma
| Domain | When |
|---|---|
| ltc.ac.th | Apr 2026 |
| beruk-toto.com | Feb 2026 |
| sargivabrik.ee | Sep 2025 |
Bulma to Bootstrap
| Domain | When |
|---|---|
| sapp-peru.com | Feb 2026 |
| snotr.com | Dec 2025 |
| lewdclips.com | Dec 2025 |