HTML Tutorial

HTML Performance Tips

Practical Steps for Optimizing HTML Performance

Lazy Loading of Images:

  • Defer loading images that are not immediately visible.
  • Use the HTML attribute loading="lazy" on <img> tags.

Minimizing HTTP Requests:

  • Combine multiple CSS and JavaScript files into single files.
  • Use CSS sprites for small images.
  • Leverage browser caching with Cache-Control headers.

Optimizing Asset Delivery:

  • Use a Content Delivery Network (CDN) to serve assets from multiple locations.
  • Compress assets (images, CSS, JavaScript) using tools like Gzip.
  • Use HTTP/2 for faster server-client communication.

Optimizing HTML for Better Performance:

  • Use semantic HTML tags to improve browser parsing.
  • Avoid nesting elements, especially in frequently loaded pages.
  • Minimize the use of inline styles and scripts, as they increase page weight.

Example:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <h1>Headline</h1>
  <p>Paragraph.</p>
  <img loading="lazy" src="image.jpg" alt="Image">
</body>
</html>

Additional Tips for Accessibility and Ease of Use:

  • Provide alternative text for images using the alt attribute.
  • Use headings (<h1> to <h6>) to structure content for screen readers.
  • Ensure sufficient color contrast for text and backgrounds.
  • Provide closed captions for videos.