loading-sequence

To optimize the loading sequence for Core Web Vitals, reorder critical CSS, fonts, and JavaScript so FCP triggers before LCP and LCP before FID. This involves inlining critical assets and sequencing first-party JS to unblock rendering milestones early.

To stop third-party scripts from delaying first contentful paint, schedule non-critical 3P resources around interactivity milestones. Deferring or lazy-loading third-party scripts prevents them from interfering with the critical rendering path.

Preconnecting to off-origin assets speeds up resource prioritization by establishing early connections to third-party domains. This ensures critical fonts and images are discovered and fetched without delay, directly improving LCP timing.

You should inline critical CSS and fonts when they are required for above-the-fold rendering to trigger FCP. External loading should be reserved for non-critical styles to avoid blocking the initial rendering path.

Yes, you can sequence first-party JavaScript before above-the-fold images to improve LCP. Coordinating first-party JS execution ensures the browser prioritizes hero image loading immediately after FCP triggers without interactivity delays.