Immutable.js vs jQuery Migrate
Head-to-head usage across the sites we track.
Top sites by authority
Immutable.js · jQuery Migrate · 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
Immutable.js · jQuery Migrate · share of sites in each country using one or the other
United States
1,214
988,550
Germany
167
361,975
India
179
354,719
Japan
90
329,383
France
149
322,388
Italy
125
315,256
United Kingdom
207
313,223
Brazil
120
282,509
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Immutable.js | jQuery Migrate |
|---|---|---|
| LCP | 1.7 s | 2.2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 1100 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.
Immutable.js to jQuery Migrate
| Domain | When |
|---|---|
| natures-mark.com | Nov 2025 |
| aosmay.com | Jul 2025 |