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mkczarkowski/detect-lcp.js

Created February 21, 2021 17:59
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This script let you detect and measure LCP on your website.
Raw
detect-lcp.js
new PerformanceObserver((entryList) => {
for (const entry of entryList.getEntries()) {
console.log("LCP candidate:", entry.startTime, entry);
}
}).observe({ type: "largest-contentful-paint", buffered: true });
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