Table of Contents
HTML Best Practices and Optimization
Learn professional techniques for writing clean, efficient, and maintainable HTML code.
Document Structure Best Practices
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Page description for SEO">
<title>Descriptive Page Title</title>
<!-- Preload critical resources -->
<link rel="preload" href="critical.css" as="style">
<link rel="preload" href="font.woff2" as="font" crossorigin>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<!-- Content here -->
<script src="script.js" defer></script>
</body>
</html>SEO Optimization
<head>
<title>Primary Keyword - Brand Name</title>
<meta name="description" content="Compelling description with keywords">
<meta name="keywords" content="relevant, keywords, here">
<!-- Open Graph tags -->
<meta property="og:title" content="Page Title">
<meta property="og:description" content="Page description">
<meta property="og:image" content="image.jpg">
<meta property="og:url" content="https://example.com/page">
<!-- Canonical URL -->
<link rel="canonical" href="https://example.com/page">
</head>Performance Optimization
<!-- Lazy loading images -->
<img src="image.jpg" alt="Description" loading="lazy">
<!-- Optimized resource loading -->
<link rel="dns-prefetch" href="//fonts.googleapis.com">
<link rel="preconnect" href="https://api.example.com">
<!-- Efficient script loading -->
<script src="critical.js"></script>
<script src="non-critical.js" defer></script>
<script src="analytics.js" async></script>Code Organization
<!-- Use consistent indentation -->
<article>
<header>
<h1>Article Title</h1>
<time datetime="2024-01-15">January 15, 2024</time>
</header>
<section>
<h2>Section Title</h2>
<p>Content paragraph with proper structure.</p>
</section>
</article>
<!-- Use comments for complex sections -->
<!-- Navigation Menu -->
<nav aria-label="Main navigation">
<!-- Menu items -->
</nav>Validation and Testing
- Validate HTML using W3C Markup Validator
- Test accessibility with screen readers
- Check performance with Lighthouse
- Test across different browsers
- Validate responsive design
Professional Tips
- Use semantic HTML5 elements
- Keep code clean and well-commented
- Optimize for performance and SEO
- Follow accessibility guidelines
- Use version control (Git)
- Stay updated with web standards