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+
175
9
Open Page Rank 8+
3,942
24
Open Page Rank 7+
21,829
40
Open Page Rank 6+
51,618
64
Open Page Rank 5+
107,665
86
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
1,143,659
419
Germany
552,961
235
Japan
532,606
182
India
489,213
278
France
433,940
213
United Kingdom
415,974
263
Italy
392,415
190
Brazil
373,280
403
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | PHP | WebAssembly |
|---|---|---|
| LCP | 2 s | 2.7 s |
| INP | 75 ms | 125 ms |
| CLS | 0 | 0.05 |
| TTFB | 1000 ms | 600 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.