Animate.css vs Flat UI
Head-to-head usage across the sites we track.
Top sites by authority
Animate.css · Flat UI · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
59
1
Open Page Rank 8+
810
16
Open Page Rank 7+
3,052
29
Open Page Rank 6+
6,035
39
Open Page Rank 5+
11,137
57
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Animate.css · Flat UI · share of sites in each country using one or the other
United States
141,957
341
India
88,802
233
Brazil
65,075
131
Germany
64,757
180
Italy
50,652
152
United Kingdom
48,133
244
France
45,785
154
Spain
40,200
162
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Animate.css | Flat UI |
|---|---|---|
| LCP | 2.2 s | 2.1 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 900 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.