CDN Checker

The CDN Checker analyzes the health of assets served through a CDN, with emphasis on GitHub-hosted assets. It performs probe-based checks to quantify delivery performance and availability across edge locations. Conceptually, inputs are normalized, probes are executed against the asset URL (and optional CDN host), and results are aggregated into per-asset metrics suitable for developer dashboards and CI pipelines.
The tool supports both single-asset checks and batch testing, enabling quick comparisons across multiple assets or deployments. Latency is reported in milliseconds, while availability reflects successful responses versus total probes. TLS details (version, certificate status) are captured when TLS is used, aiding security validation. Outputs can be exported as JSON or CSV for automation and post-deploy audits. Unique value derives from a GitHub-centric focus, providing edge-location visibility and integration-ready results that help verify that asset delivery meets deployment SLAs and performance expectations. Use cases include pre-go-live checks after CDN configuration changes, post-deployment validation, and ongoing health monitoring for critical assets such as JS bundles, CSS, and media files.
Core features include input validation, per-asset reporting, batch mode, TLS visibility, and exportable results. The tool is designed for developers, site reliability engineers, and web teams maintaining GitHub-hosted content delivered via CDNs.