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Web Vitals
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Article
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Learn about Web Vitals from this introductory overview.
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Defining the Core Web Vitals metrics thresholds
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Article
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Learn about the research and methodology behind the recommended metrics for Core Web Vitals.
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Measure Web Vitals with the PageSpeed Insights and Chrome UX Report APIs
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Codelab
Learn how to measure a web page’s Core Web Vitals with the PageSpeed Insights and Chrome UX Report APIs.
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Measure and report Core Web Vitals with the web-vitals library
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Codelab
Learn how to measure and report a web page's Core Web Vitals with the web-vitals JavaScript library.
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Best practices for measuring Web Vitals in the field
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Article
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Learn how to measure Web Vitals with your analytics tool.
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Optimize First Input Delay
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Article
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Learn how to respond faster to user interactions.
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Optimize Cumulative Layout Shift
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Article
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Learn how to avoid sudden layout shifts to improve your user experience.
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Optimize Largest Contentful Paint
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Article
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Learn how to render your main content faster.
Improve your website with Web Vitals quiz
Test your knowledge of Web Vitals.
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"id": "tooComplicatedTooManySteps",
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"id": "outOfDate",
"label":"Out of date"
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"id": "samplesCodeIssue",
"label":"Samples / code issue"
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"id": "otherDown",
"label":"Other"
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"id": "solvedMyProblem",
"label":"Solved my problem"
},{
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"id": "otherUp",
"label":"Other"
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