Search / rs.heade/lookup
protogridR0· no sign-inLook up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers.
v1.0.0 · active · website · descriptor JSON · versions
{
"mcpServers": {
"lookup": {
"type": "http",
"url": "https://heade.rs/mcp"
}
}
}claude mcp add --transport http lookup https://heade.rs/mcp[mcp_servers.lookup]
url = "https://heade.rs/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"lookup": {
"type": "remote",
"url": "https://heade.rs/mcp",
"enabled": true
}
}
}{
"mcpServers": {
"lookup": {
"type": "http",
"url": "https://heade.rs/mcp"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=lookup&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vaGVhZGUucnMvbWNwIn0%3D"
}{
"servers": {
"lookup": {
"type": "http",
"url": "https://heade.rs/mcp"
}
}
}{
"mcpServers": {
"lookup": {
"httpUrl": "https://heade.rs/mcp"
}
}
}extensions:
"lookup":
enabled: true
name: "lookup"
type: streamable_http
uri: "https://heade.rs/mcp"
timeout: 300
protocol.modernsupports 2026-07-28 (server/discover)protocol.statelessanswers without a sessionprotocol.transportstreamable HTTPprotocol.list_ttltool list is cacheable (ttlMs 86400000)auth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptionsevery tool has a descriptiontools.description_lengthdescriptions are concisetools.schemasevery tool has an object input schematools.annotations1 of 1 tools declare readOnlyHint or destructiveHinttools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHinttools.token_costabout 319 tokens to load every tooltools.api_dumptools are not a one-to-one API dumpstability.changesno tool changes in 30 daysstability.rug_pullno tool changed its meaning under the same namedeps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI packageNo tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+dns-namespace +website +reachable +uptime-94% +updated-22d-ago -no-repository
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://heade.rs/mcp streamable-http | none | yes | 94% | 505 ms | 2026-07-28 | 2026-10-20 |
lookupread-only | Look up a domain, IP address or network (AS number) on heade.rs and return its report. For a domain or IP address: where it's hosted (network, BGP prefix, RPKI, location, cloud region, CDN), registration (RDAP/WHOIS), DNS records and DNSSEC, email security (SPF, DMARC, MTA-STS, BIMI), the certificate, a security-header grade and the response headers, the website's tech stack with end-of-life and vulnerability checks, which AI crawlers it lets in and what it offers agents, and open ports from Shodan InternetDB. For an AS number: its prefixes, RPKI and ASPA, upstreams and peers, internet exchanges and registration. Data is live or mirrored within the hour; a lookup takes a few seconds. |
Schemas: list_tools.
{
"name": "rs.heade/lookup",
"title": "heade.rs",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://heade.rs/mcp",
"type": "streamable-http"
}
],
"version": "1.0.0",
"websiteUrl": "https://heade.rs",
"description": "Look up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers."
}