The registry contains 24 checks across six independent axes. Quick Scan runs 23 by default; the experimental A2A Agent Card check is available but disabled in the default profile.
Core crawlability and indexation signals exposed by the entry page.
Validate robots.txt availability and syntax. Specification: RFC 9309.
Discover and validate XML or text sitemaps.
Validate the canonical URL declaration on the entry page.
Check title, description, robots directives, and language.
Machine-readable structure and alternate ways to retrieve site content.
Detect and parse JSON-LD blocks.
Check whether the site publishes an LLM-readable content index.
Request the entry page with Accept: text/markdown.
Published controls governing crawler access and declared content use.
Evaluate explicit rules for known AI crawler user agents.
Parse AI training, search, and input policy signals.
Check signed web-bot authentication discovery.
Public metadata that lets software agents discover links, tools, and cards.
Inspect HTTP Link headers for discovery metadata. Specification: RFC 8288.
Query DNS-AID service and index records. Specification: IETF draft.
Discover MCP server metadata.
Discover an A2A agent card.
Discover an Agent Skills index.
Detect browser-exposed WebMCP tools.
Discovery documents for APIs, authorization servers, and protected resources.
Check the well-known API catalog endpoint.
Discover OAuth or OpenID Connect authorization metadata.
Check protected-resource authorization metadata. Specification: RFC 9728.
Check human and agent-readable authentication instructions.
Experimental discovery protocols for machine-readable payments and commerce.
Detect HTTP 402 machine-payment flows.
Detect machine-payment protocol metadata.
Discover a Universal Commerce Protocol profile.
Discover an Agentic Commerce Protocol document.
Checks observe publicly reachable resources and protocol declarations at scan time. Experimental protocols are reported with their applicability and do not imply access to private model telemetry, citation frequency, rankings, or provider-side analytics.