CacheBudget

CacheBudget is a web app (with optional CLI) that continuously audits and enforces “cache correctness” across CDNs and edge platforms. It detects risky cache-control headers, inconsistent Vary behavior, accidental private caching, and cache key explosions that drive origin costs. You connect your CDN logs (Cloudflare, Fastly, Akamai) and origin metrics, then CacheBudget builds a baseline of cache hit ratio, origin egress, and latency by route. It flags regressions after deploys, pinpoints the exact header or rule change that caused them, and suggests concrete fixes (e.g., normalize query params, tighten cache keys, add surrogate keys, fix s-maxage). It also provides a “budget” system: if cache hit ratio drops below a threshold for a route, it triggers alerts and can open a PR with recommended header/rule changes. This is a traditional app with AI-assisted diagnostics and fix suggestions.