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Understanding the performance impact of anti-flicker snippets

Speed Curve

Experimentation tools that use asynchronous scripts – such as Google Optimize, Adobe Target, and Visual Web Optimizer – recommend using an anti-flicker snippet to hide the page until they've finished executing. Google Optimize) has finished applying its experiments. In Google Optimize's default case is the whole document.

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How to use Server Timing to get backend transparency from your CDN

Speed Curve

However, that pesky 20% on the back end can have a big impact on downstream metrics like First Contentful Paint (FCP), Largest Contentful Paint (LCP), and any other 'loading' metric you can think of. Google recommends that TTFB be 800ms at the 75th percentile. That performance golden rule still holds true today.

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To understand the risks posed by AI, follow the money

O'Reilly

By Rufus Rock , UCL ; Tim O’Reilly , UCL ; Ilan Strauss , UCL ; and Mariana Mazzucato , UCL This article is republished from The Conversation under a Creative Commons license. Advertisements have been an integral part of retail for many decades and anytime we include them they are clearly marked as ‘Sponsored’.

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World’s Top Web Performance Leaders To Watch

Rigor

Jake is a developer advocate at Google working with the Chrome team to develop and promote web standards and developer tools, as well as a contributor to the Chromium blog. Jake is a frequent speaker at many popular conferences and events, such as 100 Days of Google Dev , JAMstakConf , JSConf , SmashingConf , and dozens of others.

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A simple, client-side approach to measuring Speed Index

Dean Hume

Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses. The excitement of seeing a web page load in an instant kept me coming back for more.

Speed 40
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A simple, client-side approach to measuring Speed Index

Dean Hume

Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses. The excitement of seeing a web page load in an instant kept me coming back for more.

Speed 40
article thumbnail

A simple, client-side approach to measuring Speed Index

Dean Hume

Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses. The excitement of seeing a web page load in an instant kept me coming back for more.

Speed 40