Why is inline CSS bad for performance?

Inline CSS increases HTML file size, prevents caching, blocks rendering, and makes maintenance difficult. External stylesheets are generally more efficient.

What are render-blocking resources?

Render-blocking resources are CSS and JavaScript files that prevent the browser from displaying content until they are fully downloaded and processed.

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Inline CSS can significantly impact your website's performance, maintainability, and SEO. Our CSS analyzer helps you identify inline styles, understand their impact, and provides actionable recommendations for optimization.

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CSS Best Practices

Use external CSS files for better caching
Minimize inline styles for maintainability
Implement CSS optimization techniques
Use semantic class names and structure