What is the difference between a Data URL and a regular URL?

A regular URL needs an HTTP fetch; a Data URL inlines data as data:[MIME];base64,[data] with no extra request but ~33% larger payload.

When should I use Data URLs?

Best for small inline assets (icons, SVG, tiny images); larger or reused files are better served as normal URLs with caching.

No hard spec limit, but browsers and CSS parsing impose practical caps—large inlines bloat HTML/CSS and slow loads.

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