Lazo Lab Sign up

Web Development / Going live

Lesson 29 of 30

Website performance

Fast sites keep visitors. Compress images, load fewer scripts, and let the browser cache static files.

Key points

  • Use modern image formats like WebP
  • Defer scripts that aren't urgent
  • Measure with Lighthouse
Watch a video on thisOpens YouTube search results for “Website performance” in a new tab

Quiz · +10 XP

Which tool measures a page's performance and accessibility?

Log in to save progress and earn XP.