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phy-http-cache-audit

separate

HTTP caching header analyzer that checks Cache-Control directives, ETag/Last-Modified freshness, Vary correctness, CDN cache status (X-Cache, CF-Cache-Status, Age), and stale-while-revalidate opportunities for any URL or local dev server. Identifies assets that should be cached but aren't, misconfigured max-age values, cache poisoning risks (dangerous Vary headers), and missing immutable flags on hashed static files. Supports nginx, Apache, Cloudflare, Fastly, and Next.js config generation. Zero external API — uses only curl. Triggers on "cache headers", "caching audit", "cache-control", "CDN cache miss", "no-cache no-store", "etag missing", "immutable assets", "/cache-audit".

When to use

• cache headers
• caching audit
• cache-control
• CDN cache miss
• no-cache no-store
• etag missing
• immutable assets
• /cache-audit

Skill page

Source