Images and SEO
Google's Core Web Vitals directly impact search rankings. Three metrics matter:
- LCP (Largest Contentful Paint) — should be under 2.5 seconds
- CLS (Cumulative Layout Shift) — should be under 0.1
- INP (Interaction to Next Paint) — should be under 200ms
How to Optimize Images for SEO
1. Compress Images
Use our Image Compressor to reduce file size by 70-90% without visible quality loss.2. Choose Modern Formats
WebP is 25-35% smaller than JPEG at equivalent quality.3. Set Proper Dimensions
Always specify width and height attributes to prevent layout shift (CLS).4. Use Lazy Loading
<img src="image.jpg" loading="lazy" alt="Description">
5. Write Descriptive Alt Text
Alt text helps Google understand the image and improves accessibility.Measuring Impact
Use Google PageSpeed Insights to measure your Core Web Vitals:
- Before optimization: LCP 4.2s, Score 35
- After image compression: LCP 1.8s, Score 78
Conclusion
Image compression is the easiest SEO win. Compress your images now with our free Image Compressor.