How to improve website performance?

Performance ImportantAppleSwiggyAmazonUber

Optimize your images

  • Choose the right image format
  • Choose the correct level of compression
  • Use Imagemin to compress images
  • Replace animated GIFs with video for faster page loads
  • Serve responsive images
  • Serve images with correct dimensions
  • Use WebP images
  • Use image CDNs to optimize images

Lazy-load images and video

  • Use lazy-loading to improve loading speed
  • Lazy-loading images
  • Lazy-loading video

Optimize your JavaScript

  • Reduce JavaScript payloads with code splitting
  • Remove unused code
  • Minify and compress network payloads
  • Serve mordern code to mordern browsers for faster page loads
  • Publish, ship and install modern JavaScript for faster applications

Optimize your resource delivery

  • CDNs
  • Prioritize resources
  • Preload critical assets to improve loading speed
  • Prefetch resources to speed up future navigations
  • Fast playback with audio and video preload

Optimize your CSS

  • Defer non-critical CSS
  • Minify CSS
  • Extract critical CSS
  • Optimize CSS background images with media queries

Optimize your third-party resources

  • Third-party JavaScript performance
  • Identify slow third-party JavaScript
  • Efficiently load third-party JavaScript

Optimize WebFonts

  • Avoid invisible text during font loading
  • Optimize WebFont loading and rendering
  • Reduce WebFont Size

Optimize for network quality

  • Adaptive serving based on network quality
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