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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

1.62S

Cumulative Layout Shift

0.014

Total Blocking Time

1.39S

Largest Contentful Paint (1622ms)

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

1500ms
1800ms
1900ms

LCP Event Summary

See full details

Time1622ms
Size57600px²
Typeimage
Element TypeIMG
Srchttps://i.gzn.jp/img/2026/08/28/android-17-encrypted-client-hello/00_m.png
Outer HTML<img src="https://i.gzn.jp/img/2026/08/28/android-17-encrypted-client-hello/00_m.png" id="lz1">...

LCP: 1622 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://gigazine.net/ 2: https://gigazine.net/gsc/get_sponsors_comment.js 3: https://i.gzn.jp/img/gsc/payment/amex.png 4: https://i.gzn.jp/img/gsc/payment/apple-pay.svg 5: https://i.gzn.jp/img/-side-ad.js 6: https://i.gzn.jp/img/gsc/payment/visa.png 7: https://i.gzn.jp/img/gsc/payment/master.png 8: https://i.gzn.jp/js/onesignal.js 9: https://i.gzn.jp/img/gsc/payment/g-pay.png 10: https://i.gzn.jp/js/lazysizes.min.js 11: https://www.clarity.ms/tag/6uu7uylb7t?ref=bwt 12: https://web-banner.ads.aps.amazon-adsystem.com/e/dtb/bid 13: https://static.ads-twitter.com/uwt.js 14: https://fundingchoicesmessages.google.com/i/4330625?ers=3 15: https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j102&tid=UA-134978-3&cid=43347010.1787904193&jid=450627789&gjid=461399846&_gid=38856345.1787904194&_u=QCCAgEABAAAAAGAAI~&z=133252049 16: https://www.google-analytics.com/j/collect?v=1&_v=j102&a=2070439121&t=pageview&_s=1&dl=https%3A%2F%2Fgigazine.net%2F&ul=en-us&dt=GIGAZINE%EF%BC%88%E3%82%AE%E3%82%AC%E3%82%B8%E3%83%B3%EF%BC%89&sr=1920x1200&vp=1366x681&_u=QCCAgEABAAAAACAAI~&jid=450627789&gjid=461399846&cid=43347010.1787904193&tid=UA-134978-3&_gid=38856345.1787904194&_slc=1&gtm=45He68q1n81WKH2HB8v78233812za200zd78233812&cd2=none&gcd=13l3l3l3l1l1&dma=0&tag_exp=115938466~115938469~118897920~118897930~119259605~120385422&z=916965367 17: https://i.gzn.jp/images/caticons.png loadStarteventUtils: 0.718s loadEndeventUtils: 0.719s loadStartpixelQueue: 0.719s loadEndpixelQueue: 0.719s

LCP Image

Full LCP Event Information

  • time: 1622
  • size: 57600
  • element:
    • nodeName: IMG
    • boundingRect:
      • x: 15.671875
      • y: 209
      • width: 319.90625
      • height: 179.9375
      • top: 209
      • right: 335.578125
      • bottom: 388.9375
      • left: 15.671875
    • outerHTML: <img src="https://i.gzn.jp/img/2026/08/28/android-17-encrypted-client-hello/00_m.png" id="lz1">
    • src: https://i.gzn.jp/img/2026/08/28/android-17-encrypted-client-hello/00_m.png
    • currentSrc: https://i.gzn.jp/img/2026/08/28/android-17-encrypted-client-hello/00_m.png
    • content: normal
  • type: image
  • url: https://i.gzn.jp/img/2026/08/28/android-17-encrypted-client-hello/00_m.png

Cumulative Layout Shift (0.014)

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

Window 1 (0.014)

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

  • 3004ms (0.01364)

Total Blocking Time (1388 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)
connect.facebook.net156
pagead2.googlesyndication.com156
securepubads.g.doubleclick.net149
c.amazon-adsystem.com104
fundingchoicesmessages.google.com69
www.googletagmanager.com48
scripts.clarity.ms27
www.googleadservices.com20
cdn.mxpnl.com12
static.affiliate.rakuten.co.jp12