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ReasonJun
Web Vitals : LCP / FID / CLS & Measure Performance / Lighthouse 본문
Frontend/Library
Web Vitals : LCP / FID / CLS & Measure Performance / Lighthouse
ReasonJun 2023. 6. 21. 12:36728x90
Web Vitals are a set of metrics that measure the user experience of a web page. They are designed to help developers understand how their pages are performing and identify areas where they can improve.
The three core Web Vitals are:
- Largest Contentful Paint (LCP): This measures the time it takes for the largest contentful paint (LCP) element on a page to render. The LCP element is typically the text or image that is most important to the user's experience.
- First Input Delay (FID): This measures the time it takes for a user to interact with a page after it has loaded. The FID is important because it measures how responsive a page feels to the user.
- Cumulative Layout Shift (CLS): This measures the amount of visual change that occurs as a page loads. The CLS is important because it measures how stable a page feels to the user.
Measure Performance
https://developers.google.com/speed
Chrome extension Lighthouse
Chrome extension Performance insights
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