Java vs WebAssembly
Head-to-head usage across the sites we track.
Top sites by authority
Java · WebAssembly · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
126
7
Open Page Rank 8+
2,314
25
Open Page Rank 7+
8,936
40
Open Page Rank 6+
15,536
66
Open Page Rank 5+
23,824
91
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Java · WebAssembly · share of sites in each country using one or the other
United States
115,677
475
India
53,805
309
Germany
39,854
273
United Kingdom
39,030
313
Canada
35,015
272
France
34,236
266
Brazil
32,646
582
Indonesia
32,744
284
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Java | WebAssembly |
|---|---|---|
| LCP | 1.9 s | 3.3 s |
| INP | 75 ms | 175 ms |
| CLS | 0 | 0.05 |
| TTFB | 800 ms | 500 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.
Java to WebAssembly
| Domain | When |
|---|---|
| uatextfront66.com | Jul 2025 |