Front-end Engineering Lab
Patterns

Images & Media

Optimizing media delivery and rendering stability.

Why this section exists?

Images and videos are often the heaviest part of a website. Poor management leads to slow loading and "jumpy" layouts (Cumulative Layout Shift).

The Core Problem

Slow images delay the LCP (Largest Contentful Paint), which hurts SEO and makes the user think the app is broken.

Engineering Patterns:

  • Resource Prioritization: Telling the browser exactly what to download first.
  • Placeholder Strategies: Using "Blurry" or "Skeleton" states for better perceived speed.
  • Lazy Everything: Only loading pixels that the user is actually looking at.

Impact: Improves Core Web Vitals and creates a premium, "smooth" feel for the interface.

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