What are the recommended image dimensions and file sizes for WordPress?

Optimal image dimensions and file sizes in WordPress 6+ vary by usage:

  • Featured images: 1200x630px (maximum)
  • Blog post images: 800-1200px width
  • Thumbnails: 150x150px
  • Header images: 2000px width (maximum)

For file sizes, aim for:

  • Large images: Under 200KB
  • Medium images: Under 100KB
  • Thumbnails: Under 30KB

These guidelines help maintain fast loading times while ensuring images look sharp on various devices. Consider your theme’s specific requirements and responsive design needs when choosing dimensions.

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