Web Media Sniffing

The tool analyzes a given URL to enumerate media assets and related HTTP headers. It supports images, videos, fonts, scripts, and stylesheets and returns a structured inventory with per-resource metadata. It is designed for developers, performance engineers, SEO analysts, and QA teams performing site audits, media governance, and delivery optimization.\n\nConceptually, it operates in two phases: a lightweight header-based discovery to minimize load, followed by optional deeper inspection for selected assets. It classifies assets using Content-Type and simple signature checks, records first_seen/last_seen times, and aggregates sample URLs. It can target a single URL or a site-scoped set and can limit results with max_results. The tool also generates domain-level insights such as hosting provider, geolocation, and TLS status.\n\nWhat sets it apart is the integration of asset inventory with HTTP metadata and domain insights, enabling CI-friendly exports and governance workflows. It emphasizes robustness, with caching, error flags for partial results, and clear handling of redirects or timeouts. It focuses on public assets and respects authentication boundaries, avoiding private data unless explicitly configured. Use cases include performance tuning (CDN, compression), privacy audits, SEO asset coverage checks, and security assessments.\n\nCore features include per-resource media_type, counts, first_seen/last_seen, sample URLs, a headers_summary, and domain_insights. Outputs are export-ready as JSON or CSV for integration with data pipelines and reporting systems.