# Testing tools and utilities reference for CDN and MediaTailor integrations
Testing tools reference

AWS Elemental MediaTailor content delivery network (CDN) integration testing requires various tools for comprehensive validation and debugging. Reference guide for tools commonly used in content delivery network and MediaTailor integration testing.

`curl` - HTTP request testing  
Test manifest requests: `curl -v "https://your-cdn-domain.com/v1/master/hls/config/master.m3u8"`  
Test with headers: `curl -H "User-Agent: TestAgent/1.0" "https://your-cdn-domain.com/..."`  
Test with parameters: `curl "https://your-cdn-domain.com/...?aws.sessionId=test123"`

`ffprobe` - HLS manifest validation  
Validate HLS syntax: `ffprobe -v quiet -print_format json -show_format "https://your-cdn-domain.com/master.m3u8"`  
Check segment information: `ffprobe -v quiet -show_entries packet=pts_time "segment.ts"`

`mp4box` - DASH manifest validation  
Validate DASH MPD: `mp4box -info "https://your-cdn-domain.com/manifest.mpd"`  
Check segment timing: `mp4box -info segment.m4s`

Browser developer tools  
Monitor network requests in the Network tab  
Check for CORS errors in the Console tab  
Inspect request/response headers  
Analyze timing and performance metrics

**Additional resources:**
+ [Troubleshooting CloudFront](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/Troubleshooting.html) - Comprehensive CDN troubleshooting guide
+ [Increase CloudFront cache hit ratio](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cache-hit-ratio.html) - Performance optimization guidance
+ [Monitor AWS resources](https://docs.aws.amazon.com/wellarchitected/latest/performance-efficiency-pillar/monitor-aws-resources.html) - Performance monitoring best practices