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How To Fix Largest Contentful Issues With Subpart Analysis
- The largest contentful paint (LCP) measures how quickly a website loads from a visitor's perspective and impacts user experience and search engine ranking.
- To fix LCP issues, Google introduced LCP subparts to identify load delays, and this data is now available in Chrome UX Report.
- The LCP subparts include Time to First Byte (TTFB), Resource Load Delay, Resource Load Time, and Element Render Delay.
- DebugBear's website speed test can help measure LCP subparts' contributions to overall LCP scores.
- Optimizing TTFB involves speeding up server responses or caching HTML content to improve website speed.
- Resource Load Delay can be reduced by using native image loading attributes instead of libraries like lazysize.js.
- Resource Load Duration is affected by image download speed, format, and proper sizing.
- Element Render Delay can be caused by render-blocking scripts or preloading images, impacting overall website speed.
- Real User CrUX data now includes LCP subpart details to provide insights into optimizing LCP scores for actual visitors.
- Tracking LCP subparts through real user monitoring tools like DebugBear helps in improving website speed over time.
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