HTML Validator
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About HTML Validation:
- Syntax Errors: Missing tags, invalid nesting, unclosed elements
- Accessibility: Missing alt text, improper heading structure, ARIA issues
- SEO Best Practices: Missing meta tags, improper heading hierarchy
- Deprecated Tags: Outdated HTML elements that may not work in modern browsers
- Performance Issues: Large inline styles/scripts, unoptimized elements
- Mobile Readiness: Viewport issues, touch target sizes, responsive problems