Why It Matters:
Images are often the largest assets on a web page and can significantly slow down load times. High-resolution, uncompressed images require more data, meaning longer wait times for users—especially those on mobile devices or slower networks.
Actionable Tips:
- Use the Right Format: Choose modern formats like WebP or AVIF for superior compression and quality. For photographs, JPEG often works best; for graphics and icons, use PNG or SVG.
- Leverage Compression Tools: Tools like TinyPNG, Optimizilla, or built-in WordPress plugins can reduce file sizes without sacrificing too much image quality.
- Use Responsive Images: Implement srcset and sizes attributes to deliver appropriately sized images depending on the user's device.