UnoCSS vs ZURB Foundation
Head-to-head usage across the sites we track.
Top sites by authority
UnoCSS · ZURB Foundation · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
9
66
Open Page Rank 8+
58
1,000
Open Page Rank 7+
142
3,322
Open Page Rank 6+
244
6,029
Open Page Rank 5+
367
10,079
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
UnoCSS · ZURB Foundation · share of sites in each country using one or the other
United States
1,685
87,178
United Kingdom
822
29,173
Germany
992
24,259
Canada
673
23,316
India
1,205
22,314
France
783
19,373
Netherlands
636
16,190
Australia
518
15,569
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | UnoCSS | ZURB Foundation |
|---|---|---|
| LCP | 2.8 s | 1.8 s |
| INP | 125 ms | 75 ms |
| CLS | 0.05 | 0 |
| TTFB | 700 ms | 900 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
UnoCSS to ZURB Foundation
| Domain | When |
|---|---|
| infotravel.lt | May 2026 |
ZURB Foundation to UnoCSS
| Domain | When |
|---|---|
| youngwildfree.be | May 2026 |
| scylladb.com | May 2026 |
| pmkl.ru | Feb 2026 |
| ilovewebtoolz.com | Sep 2025 |