# Testing tools and utilities reference for CDN and MediaTailor integrations
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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

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS Elemental MediaTailor. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query mediatailor` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).