Immutable.js vs Swiper
Head-to-head usage across the sites we track.
Top sites by authority
Immutable.js · Swiper · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
117
Open Page Rank 8+
7
2,436
Open Page Rank 7+
19
11,770
Open Page Rank 6+
27
25,096
Open Page Rank 5+
38
48,140
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 · Swiper · share of sites in each country using one or the other
United States
1,214
491,705
India
179
274,591
Brazil
120
234,477
Germany
167
213,155
Japan
90
207,032
France
149
185,131
United Kingdom
207
182,905
Italy
125
160,103
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Immutable.js | Swiper |
|---|---|---|
| LCP | 1.7 s | 2.1 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 1000 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 Swiper
| Domain | When |
|---|---|
| volvocarsoakville.com | Jul 2025 |