RouteCanary
RouteCanary is a web app (with optional lightweight agent) that continuously validates load balancer behavior from real vantage points and synthetic clients. Instead of only watching server metrics, it runs canary transactions through each LB path (DNS, anycast, L7 rules, WAF, mTLS) and flags mismatches: wrong backend pools, sticky-session failures, header rewrites, TLS/cert issues, geo-routing mistakes, and intermittent 5xx/latency spikes. It correlates failures with recent config changes by ingesting LB config snapshots and change events, then produces a “blast radius” report and a rollback checklist. This is a combination traditional + AI app: traditional for deterministic tests and diffing, AI to summarize incidents, cluster similar failures, and suggest likely misconfig causes. The goal is fewer midnight outages caused by subtle LB config drift and provider edge quirks.