`scan_domain`

8 servers reported a tool by this name when we called them. Names are chosen by whoever wrote the server, so two tools sharing a name do not have to do the same thing. We record what was reported, not what it does.

server	result when we called it	tools
Blackveil DNS https://dns-mcp.blackveilsecurity.com/mcp	answers-mcp	79
intodns https://intodns.ai/api/mcp	answers-mcp	45
inboxguard https://mcp.inboxguard.io/mcp	answers-mcp	28
TLS Radar https://tlsradar.com/api/v1/mcp	answers-mcp	17
dns-doctor https://dnsdoctor.dev/mcp	answers-mcp	16
agentready https://agentready-rho.vercel.app/api/mcp	answers-mcp	11
siteguardian https://mcp.siteguardian.io	answers-mcp	5
letagentsin https://letagentsin.com/mcp	answers-mcp	2

8 of these answered an MCP handshake on the day we checked. That is not a promise the tool works, only that the server was running and told us the tool existed.