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+
60
1
Open Page Rank 8+
814
15
Open Page Rank 7+
3,000
27
Open Page Rank 6+
5,860
37
Open Page Rank 5+
10,740
53
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
125,248
310
India
76,777
209
Brazil
58,516
115
Germany
50,567
145
Italy
42,082
124
United Kingdom
41,827
215
France
37,604
124
Spain
33,908
136
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, 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.