Observatory
Sitemap Variant Observatory
Reference for sitemap file forms used in AI-native web discovery. Live examples, crawler signal data, and constellation routing — all served directly from this domain.
Sitemap variants
/sitemap.xmlStandard XML sitemap. URL inventory for crawlers.
/sitemap-discovery.xmlProtocol discovery layer. Lists agent endpoints and machine-readable surfaces.
/sitemap-constellation.xmlConstellation neighbor graph. Agent-to-agent discovery links.
/sitemap-variance-index.xmlCross-domain variance index. ClaudeBot, GPTBot, and PerplexityBot crawler signal data.
Discovery surfaces
agent-discovery.jsonAgent capabilities and index (FCS-4.0).
agent.jsonSite identity and role declaration.
constellation.jsonNeighbor graph across the GEO triad.
abf.jsonAgentic Browsing Format metadata.