GSAP vs UmiJs
Head-to-head usage across the sites we track.
Top sites by authority
GSAP · UmiJs · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
97
3
Open Page Rank 8+
1,446
22
Open Page Rank 7+
5,938
54
Open Page Rank 6+
12,399
89
Open Page Rank 5+
23,449
129
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
GSAP · UmiJs · share of sites in each country using one or the other
United States
374,319
977
India
135,440
582
United Kingdom
119,878
385
Germany
113,182
407
France
112,048
347
Italy
105,125
290
Brazil
87,855
316
Canada
85,143
371
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | GSAP | UmiJs |
|---|---|---|
| LCP | 2 s | 2.9 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0.1 |
| TTFB | 900 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.