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Core Web Vitals

This page details results from metrics that Google has deemed Core Web Vitals . For more information about these metrics and their significance, check out our Core Web Vitals Guide.

Observed Web Vitals Metrics (Collected in this WPT test run)

Largest Contentful Paint

1.63S

Cumulative Layout Shift

0.038

Total Blocking Time

.74S

Largest Contentful Paint (1629ms)

View as Filmstrip - View Video - About Largest Contentful Paint (LCP)

1600ms
1800ms
2100ms

LCP Event Summary

See full details

Time1629ms
Size160000px²
Typeimage
Element TypeIMG
Srchttps://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-light.png
Outer HTML<img src="https://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-light.png" width="500" height="500" alt="TanStack Logo" loading="eager" decoding="async" class="absolute inset-0 block h-full w-full object-contain dark:hidden" fetchpriority="high">...

LCP: 1629 ms

Start Render
First Contentful Paint
Largest Contentful Paint
Layout Shift
DOM Interactive
DOM Content Loaded
On Load
Document Complete
Render Blocking Resource Insecure Request 3xx response4xx+ response
 Doesn't Belong to Main Doc 
Step_1 1: https://tanstack.com/ 2: https://tanstack.com/assets/index-Drgb1pa5.css 3: https://tanstack.com/assets/index-B9NJHisQ.js 4: https://tanstack.com/assets/rolldown-runtime-9r-HBx0o.js 5: https://tanstack.com/assets/tanstack-router-U0H7bmeq.js 6: https://tanstack.com/assets/tanstack-query-BttgOCQn.js 7: https://tanstack.com/assets/icons-xTj2hkG8.js 8: https://tanstack.com/assets/shared-constants-yNCBtlN_.js 9: https://tanstack.com/assets/routes-DfNLmXGz.js 10: https://tanstack.com/assets/Footer-DXYm8Pa-.js 11: https://tanstack.com/assets/useNpmDownloadCounter-jgTPLjDE.js 12: https://tanstack.com/assets/blog.functions-C-Dso7yf.js 13: https://tanstack.com/assets/users.functions-CeXclkLY.js 14: https://tanstack.com/fonts/Inter-latin.woff2 15: https://tanstack.com/images/logos/logo-black.svg 16: https://tanstack.com/images/logos/logo-white.svg 17: https://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-light.png 18: https://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-dark.png 19: https://tanstack.com/site.webmanifest 20: https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496 21: https://tanstack.com/cdn-cgi/image/width=30,quality=90,format=auto/images/logos/logo-color-100.png 22: https://tanstack.com/cdn-cgi/rum sentry-tracing-init: 1.493s

LCP Image (BPP: 1.31)

Full LCP Event Information

  • time: 1629
  • size: 160000
  • element:
    • nodeName: IMG
    • boundingRect:
      • x: 107.5
      • y: 148
      • width: 400
      • height: 400
      • top: 148
      • right: 507.5
      • bottom: 548
      • left: 107.5
    • outerHTML: <img src="https://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-light.png" width="500" height="500" alt="TanStack Logo" loading="eager" decoding="async" class="absolute inset-0 block h-full w-full object-contain dark:hidden" fetchpriority="high">
    • src: https://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-light.png
    • currentSrc: https://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-light.png
    • content: normal
  • type: image
  • url: https://tanstack.com/cdn-cgi/image/width=500,height=500,quality=85,format=auto/images/logos/splash-light.png
  • objectSize: 26102 bytes

Cumulative Layout Shift (0.038)

View as Filmstrip - View Video - About Cumulative Layout Shift (CLS)

Window 1 (0.038)

Hover over any image to see the previous frame and the effect of the layout shift.

  • 1433ms (0.03766)
  • 2011ms (0.00002)

Total Blocking Time (735 ms)

About Total Blocking Time (TBT)


View in Chrome Dev Tools Performance Panel

Main Thread Blocking Time by Script Origin

Script Origin Blocking Time (ms)
tanstack.com127