PHP vs WebAssembly
Head-to-head usage across the sites we track.
Top sites by authority
PHP · WebAssembly · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
177
7
Open Page Rank 8+
3,999
25
Open Page Rank 7+
22,317
40
Open Page Rank 6+
52,959
66
Open Page Rank 5+
110,685
91
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
PHP · WebAssembly · share of sites in each country using one or the other
United States
1,334,380
475
Germany
636,404
273
Japan
623,805
213
India
570,916
309
France
515,406
266
United Kingdom
482,093
313
Italy
440,575
219
Brazil
425,497
582
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | PHP | WebAssembly |
|---|---|---|
| LCP | 2 s | 3.3 s |
| INP | 75 ms | 175 ms |
| CLS | 0 | 0.05 |
| TTFB | 900 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.