GSAP vs Inertia
Head-to-head usage across the sites we track.
Detections for Inertia end in Oct 2022. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.
Top sites by authority
GSAP · Inertia · 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
GSAP · Inertia · share of sites in each country using one or the other
United States
336,193
13
India
120,243
10
United Kingdom
105,254
11
Germany
103,146
13
France
94,934
9
Italy
90,969
8
Brazil
81,278
12
Canada
75,336
7
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | GSAP | Inertia |
|---|---|---|
| LCP | 2 s | 2.2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 800 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.