Pure CSS vs ZURB Foundation
Head-to-head usage across the sites we track.
Top sites by authority
Pure CSS · ZURB Foundation · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Pure CSS · ZURB Foundation · share of sites in each country using one or the other
United States
4,080
86,282
United Kingdom
1,500
29,226
Germany
1,414
23,949
Canada
1,016
23,311
India
1,342
21,706
France
1,175
19,589
Netherlands
1,039
16,523
Italy
1,063
15,964
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Pure CSS | ZURB Foundation |
|---|---|---|
| LCP | 1.8 s | 1.8 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 900 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
ZURB Foundation to Pure CSS
| Domain | When |
|---|---|
| miiriya.com | Nov 2025 |