web.dev lcp 
Smashing Magazine
AUGUST 15, 2023
So noticeable, in fact, that Core Web Vitals has a metric all about it called Largest Contentful Paint (LCP). We can test for LCP in a number of ways. The following screenshot is taken from a test I ran through WebPageTest, resulting in an LCP of 2.4 WebPageTest waterfall timeline report. And most of all, we need to care.
Speed Curve
APRIL 30, 2024
Step 2: Navigate to the INP heatmap Look for thresholds that have been exceeded, using the color-based Google-defined thresholds for INP: Green = 500ms Step 3: Determine where the most time is spent Below are a few examples to go along with this Web.dev post on Optimizing INP by Jeremy Wagner and Philip Walton.
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Smashing Magazine
APRIL 11, 2022
Loading experience is crucial to the user’s first impression and overall usability, so Google defined Largest Contentful Paint (LCP) metric to measure how quickly the main content loads and is displayed to the user. The main content for LCP is usually the largest element located above the fold. Large preview ). Large preview ).
CSS Wizardry
JULY 23, 2023
To this end, passing Core Web Vitals means Good LCP and CLS, and Good or Not enough data FID. While rare, it is possible that a URL’s FID data will read Not enough data. Firstly, Largest Contentful Paint stops being tracked after user interaction: The browser will stop reporting new entries as soon as the user interacts with the page.
Smashing Magazine
AUGUST 3, 2023
These metrics provide a different perspective on user experience: Largest Contentful Paint (LCP) Measures the time it takes for the main content on a webpage to load. Image source: web.dev ) ( Large preview ) While optimizing for FID and CLS was relatively straightforward, LCP posed a greater challenge due to the multiple factors involved.
Smashing Magazine
OCTOBER 2, 2023
Tackling The Largest Contentful Paint (LCP) LCP is the biggest element on the page that a user sees on the initial load. For us, images are most definitely part of the LCP. You want to optimize it because it’s the first impression a user has with the page.
Smashing Magazine
MAY 17, 2021
We have enabled Web Vitals which lets us see which element caused the LCP. Google bins experiences into “Good”, “Needs Improvement”, and “Poor” based on the LCP, FID, and CLS scores real people have on the site: LCP , or Largest Contentful Paint, defines the time it takes for the largest content element to become visible.
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