# CoreWebVitalsPulse benchmark report

> Across 21 well-known public sites scanned by Zalwin (as of 2026-10-27), the median CoreWebVitalsPulse score is 60/100. The least-passed check is "HTML arrives in under 0.8 s" (0% pass). Automated read-only checks; results may be incomplete.

## Check pass rates

| Check | Sites passing |
|---|---|
| HTML arrives in under 0.8 s | 0% |
| HTML under 300 KB | 19% |
| Images declare width and height (prevents layout shift) | 38% |
| At most 20 external scripts | 48% |
| No more than 1 render-blocking script in <head> | 67% |
| Below-the-fold images lazy-load | 71% |
| Web fonts use font-display: swap | 90% |
| At most 8 third-party script domains | 100% |
| Preconnect or preload hints for critical third parties | 100% |
| Mobile viewport meta tag | 100% |

Source: https://zalwin.com/reports/corewebvitalspulse-benchmark (updated 2026-10-27).