Sitemapper helps teams catch risky website changes before they disappear into deploy noise. It continuously compares trusted crawls and surfaces changes to sitemap inventory, indexability, HTTP status, canonicals, robots access, and critical journeys.

Each incident preserves before-and-after evidence, explains why it may matter, and points to the next checks. The product includes a free public survey with no signup plus ongoing monitoring, incident history, alerts, CI guardrails, API access, and Search Console support.

Built after a real production monitoring event where accessible sitemap inventory changed from 1,361 URLs to 0 and later returned to 1,361. Sitemapper reports exactly what it observed without inventing traffic, revenue, or deletion impact.