# Domduck

> Domain reputation over time: Domain Rating, Tranco rank, TLS, and AI crawler policy.

- name: com.domduck/domduck
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 79/100 flags: no-repository
- quality: 100/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.domduck%2Fdomduck
- tools: https://api.protogrid.dev/v1/servers/com.domduck%2Fdomduck/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "domduck": {
      "type": "http",
      "url": "https://domduck.com/api/mcp/public"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 97
- freshness: 85
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-92% ~updated-78d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 100/100 (strong)

### protocol: 100 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- pass `protocol.list_ttl`: tool list is cacheable (ttlMs 3600000)

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 452 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 3, about 452 tokens to load them all
- tool set hash: 71352884244f726ee84710ecc95667c9
- badge: [![protogrid quality](https://protogrid.dev/badge/com.domduck/domduck.svg)](https://protogrid.dev/servers/com.domduck/domduck)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://domduck.com/api/mcp (streamable-http, auth api_key ${DOMDUCK_TOKEN}, reachable true, uptime30d 0.92156863)
- https://domduck.com/api/mcp/public (streamable-http, auth none, reachable true, uptime30d 0.91071427)

## Packages

_none_

## Tools (3)

- `get_ai_crawler_policy`: Which of the eight tracked AI crawlers a domain's robots.txt admits, and whether it publishes an llms.txt. Three states per agent: allowed, disallowed, unspecified. Unspecified is NOT allowed, because a catch-all Disallow blocks an agent the file never names, so read `effective` for what is in force. Reads the last stored reading; it does not fetch the file.
- `list_sources`: What Domduck reads and what each source means, including the eight AI crawlers whose robots.txt policy is tracked. A constant. Read it first: it is what lets a model interpret lookup_domain without guessing at field names or at which direction is better.
- `lookup_domain`: Public reputation snapshot for one domain from Domduck's store: Domain Rating, Tranco rank, OpenPageRank, registration date, TLS certificate state and AI crawler policy. Returns hasReading false for a domain nobody has looked up yet, which is a real answer and not an error. One domain per call, and no history: the dated series is what a Domduck account is for.