Performance/Image Optimization
Performance / Topic

Image Optimization

Learn strategies for serving responsive, optimized images to improve page load performance and user experience.

Difficulty

Beginner

Read time

15 min

Format

Concept + Code

Focus

Interview ready
Concepts
Images
Next.js
Performance

01 / Foundation

Understand the concept

Images are often the largest assets on a webpage. Optimizing them significantly reduces loading time and bandwidth usage.

Modern frameworks like Next.js provide built-in image optimization, responsive sizing, lazy loading, and efficient image formats.

02 / Implementation

Using Next.js Image

image.tsx
import Image from "next/image";

export default function Profile() {
  return (
    <Image
      src="/profile.jpg"
      alt="Profile"
      width={400}
      height={400}
      priority
    />
  );
}

04 / Interview

Test your understanding