Transforming User Experience: How Dream11 Leverages Intelligent Image Delivery | by Dream Blog | Dream Locker Room | Medium
Article Summary
Dream11 serves 15 million concurrent users during IPL peaks. Their image delivery costs were spiraling until they made one architectural change.
Dream11's engineering team tackled a classic mobile performance problem: delivering high-resolution player images across diverse devices without killing load times or bandwidth budgets. They turned to AWS Serverless Image Handler to dynamically optimize images based on device capabilities.
Key Takeaways
- Reduced image payload by 300 images per session through device-specific optimization
- Cut egress costs by 70% using CloudFront CDN with Lambda@Edge processing
- Converted images to WebP and resized based on device pixel density
- Built URL mapping system to route images across multiple S3 buckets
- Excluded GIF formats while optimizing JPG and PNG assets automatically
Critical Insight
Dream11 slashed bandwidth usage and cut cloud egress costs by 70% while improving load times through intelligent, device-aware image delivery.
