
Google Adds Experimental Soft Navigation Metrics To CrUX
Key Takeaways
- Experimental soft navigation metrics are now live in CrUX, capturing performance data for SPAs that don't trigger full page reloads
- Most traditional multi-page sites will see minimal impact; SPA-heavy sites can expect higher pass rates on Core Web Vitals
- Stable Core Web Vitals scores remain unchanged; Search Console will switch to the new metrics after a targeted May 2027 graduation date
- This addresses a long-standing gap where SPAs appeared to have better performance than they actually delivered to users
Why it matters: SPA-heavy sites (React, Vue, Angular apps) have historically shown artificially inflated Core Web Vitals scores because soft navigations weren't counted. Once Search Console switches in May 2027, these sites may see their reported performance drop, requiring optimization work. SEO practitioners managing SPA properties should begin auditing soft navigation performance now to prepare for the transition.




