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Webpage Performance Test Result

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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

.65S

Cumulative Layout Shift

0

Total Blocking Time

.23S

Largest Contentful Paint (651ms)

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

200ms
700ms
800ms

LCP Event Summary

See full details

Time651ms
Size97155px²
Typeimage
Element TypeIMG
Srchttps://developers.cloudflare.com/_astro/Dev-Docs-Header-Illustration-Light-Mode-cropped.BLVSLbQP_282GIp.svg
Outer HTML<img src="/_astro/Dev-Docs-Header-Illustration-Light-Mode-cropped.BLVSLbQP_282GIp.svg" loading="eager" decoding="async" alt="" fetchpriority="auto" width="960" height="642" class="dark:sl-hidden astro-opidluyl">...

LCP: 651 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://developers.cloudflare.com/ 2: https://developers.cloudflare.com/_astro/Head.astro_astro_type_script_index_0_lang.DdMWwAGS.js 3: https://developers.cloudflare.com/_astro/Head.astro_astro_type_script_index_1_lang.DSQdMe2M.js 4: https://developers.cloudflare.com/_astro/Head.astro_astro_type_script_index_2_lang.YP9pZ1Qa.js 5: https://developers.cloudflare.com/_astro/tailwind.xC3g-9EM.css 6: https://developers.cloudflare.com/_astro/props.CHq4hehh.css 7: https://developers.cloudflare.com/_astro/modal.ClbLAQOd.css 8: https://developers.cloudflare.com/_astro/markdown.COHA9tu7.css 9: https://developers.cloudflare.com/_astro/WorkersIsolateDiagram_astro_astro_type_style_index_0_lang.BPqzR_Sd.css 10: https://developers.cloudflare.com/_astro/page.7qqag-5g.js 11: https://developers.cloudflare.com/_astro/DocSearch.astro_astro_type_script_index_0_lang.D8YviHWe.js 12: https://developers.cloudflare.com/_astro/Header.astro_astro_type_script_index_0_lang.Cc-8SZhv.js 13: https://developers.cloudflare.com/_astro/Dev-Docs-Header-Illustration-Dark-Mode-cropped.DDWqKYx5_Z1ysx22.svg 14: https://developers.cloudflare.com/_astro/Dev-Docs-Header-Illustration-Light-Mode-cropped.BLVSLbQP_282GIp.svg 15: https://developers.cloudflare.com/_astro/ImageZoom.astro_astro_type_script_index_0_lang.gsHlPN52.js 16: https://developers.cloudflare.com/_astro/ec.8zarh.js 17: https://developers.cloudflare.com/_astro/Stream.astro_astro_type_script_index_0_lang.CH501ydf.js 18: https://developers.cloudflare.com/_astro/zaraz.DYl4KQ0l.js 19: https://developers.cloudflare.com/_astro/tippy.iRgmB6qm.js 20: https://developers.cloudflare.com/_astro/ec.m53t0.css 21: https://developers.cloudflare.com/_astro/logo.p_ySeMR1.svg 22: https://developers.cloudflare.com/_astro/print.DNXP8c50.css 23: https://ot.www.cloudflare.com/public/vendor/onetrust/scripttemplates/otSDKStub.js 24: https://developers.cloudflare.com/_astro/preload-helper.BlTxHScW.js 25: https://embed.cloudflarestream.com/embed/sdk.latest.js 26: https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015

LCP Image (BPP: 1.04)

Full LCP Event Information

  • time: 651
  • size: 97155
  • element:
    • nodeName: IMG
    • boundingRect:
      • x: 834.546875
      • y: 186.453125
      • width: 380.953125
      • height: 254.859375
      • top: 186.453125
      • right: 1215.5
      • bottom: 441.3125
      • left: 834.546875
    • outerHTML: <img src="/_astro/Dev-Docs-Header-Illustration-Light-Mode-cropped.BLVSLbQP_282GIp.svg" loading="eager" decoding="async" alt="" fetchpriority="auto" width="960" height="642" class="dark:sl-hidden astro-opidluyl">
    • src: https://developers.cloudflare.com/_astro/Dev-Docs-Header-Illustration-Light-Mode-cropped.BLVSLbQP_282GIp.svg
    • currentSrc: https://developers.cloudflare.com/_astro/Dev-Docs-Header-Illustration-Light-Mode-cropped.BLVSLbQP_282GIp.svg
    • content: normal
  • type: image
  • url: https://developers.cloudflare.com/_astro/Dev-Docs-Header-Illustration-Light-Mode-cropped.BLVSLbQP_282GIp.svg
  • objectSize: 12582 bytes

Cumulative Layout Shift (0)

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

Window 0 (0)

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

  • 602ms (0.00000)

Total Blocking Time (234 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)
customer-1mwganm1ma0xgnmj.cloudflarestream.com176