Domduck

com.domduck/domduckVersion 1.0.0

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

Status

Responds613 msNov 14, 2026, 13:55 UTCAnswered our handshake without sign-in.

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We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 13:55 UTC
Latency: 613 ms
Remotes responding: 2 of 2
Sign-in: API key, No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://domduck.com/api/mcpSign-in required613 msNov 14, 2026, 13:54 UTC

API key

Claude Code

This server asks for sign-in. Your client opens the sign-in when it connects.

claude mcp add --transport http domduck https://domduck.com/api/mcp --header 'Authorization: Bearer <YOUR_TOKEN>'

Replace <YOUR_TOKEN> before running.

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: domduck
Remote MCP server URL: https://domduck.com/api/mcp
This server expects the header Authorization.

Cursor

{
  "mcpServers": {
    "domduck": {
      "url": "https://domduck.com/api/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Replace <YOUR_TOKEN> before running.

VS Code

code --add-mcp '{"name":"domduck","type":"http","url":"https://domduck.com/api/mcp","headers":{"Authorization":"Bearer <YOUR_TOKEN>"}}'

Replace <YOUR_TOKEN> before running.

Streamable HTTP

https://domduck.com/api/mcp/publicResponds744 msNov 14, 2026, 13:55 UTC

No sign-in

Claude Code

claude mcp add --transport http domduck https://domduck.com/api/mcp/public

Claude Desktop and claude.ai

1
2
3

Settings > Connectors > Add custom connector
Name: domduck
Remote MCP server URL: https://domduck.com/api/mcp/public

Cursor

{
  "mcpServers": {
    "domduck": {
      "url": "https://domduck.com/api/mcp/public"
    }
  }
}

VS Code

code --add-mcp '{"name":"domduck","type":"http","url":"https://domduck.com/api/mcp/public"}'

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Tools

3 tools

Tools of Domduck
	Description		Read-only	Idempotent	Open world
`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.	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.	No	Yes	Yes	Yes
`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.	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.	No	Yes	Yes	Yes
`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.	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.	No	Yes	Yes	Yes

Details

Registry status: Active
Published: Aug 3, 2026
Updated: Aug 3, 2026
Website: https://domduck.com/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Search and webSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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