What is DuckAssistBot? AI crawler guide
DuckAssistBot is a crawler or fetcher associated with DuckDuckGo. See source-graded user-agent, robots.txt, verification, and observation guidance.
What is DuckAssistBot?
DuckAssistBot is a reported crawler or fetcher string associated with DuckDuckGo, but current operator evidence is incomplete. DuckDuckGo AI assistant fetcher used by DuckAssist to retrieve content for real-time answers.
Evidence status
| Field | Value |
|---|---|
| Evidence | Reported, not operator verified |
| Lifecycle | Status uncertain |
| Purpose | interaction |
| robots.txt posture | unverified |
| Source checked | 2026-06-11 |
Reported user-agent
DuckAssistBot
Allowing DuckAssistBot only creates the possibility of retrieval. To find out whether your pages are selected, measure which answer engines actually cite your pages using a stable query set.
robots.txt allow example
User-agent: DuckAssistBot Allow: /
robots.txt block example
User-agent: DuckAssistBot Disallow: /
What the rule can and cannot do
Robots.txt expresses an access policy to compliant automated crawlers. It does not authenticate the sender, remove content already collected, or guarantee that a model will use or not use content.
How to verify a request
- Match the complete documented user-agent where one exists. A match is only a clue.
- Look for operator-published IP ranges, reverse DNS, or signed-request guidance. None is attached to this record.
- Keep the observed request, operator documentation, and any inference as separate fields.
JavaScript behavior
The cited operator material does not verify JavaScript rendering. Serve useful HTML before client-side JavaScript where possible.
Related bots
- Claude-User: Also tracked as a live fetcher.
- Gemini-Deep-Research: Also tracked as a live fetcher.
- Amzn-User: Also tracked as a live fetcher.
- Kimi-User: Also tracked as a live fetcher.
- Google-Agent: Also tracked as a live fetcher.
- MistralAI-User: Also tracked as a live fetcher.
- ChatGPT Agent: Also tracked as a live fetcher.
- Google-NotebookLM: Also tracked as a live fetcher.
- ChatGPT-User: Also tracked as a live fetcher.
- Robots.txt: Robots.txt is the control file used to allow or block DuckAssistBot.
- AI Agent: DuckAssistBot gives crawler context for AI Agent.
- SemrushBot-SWA: Shares crawler-policy context with DuckAssistBot.
Frequently Asked Questions
What is DuckAssistBot?
DuckAssistBot is a reported, not operator verified crawler or fetcher record associated with DuckDuckGo.
What user-agent does DuckAssistBot use?
DuckAssistBot. Check the evidence status before attributing a matching request.
Can DuckAssistBot be blocked in robots.txt?
The record identifies DuckAssistBot as the token to review. Robots.txt is a request policy, not proof of model use or non-use.
How can I verify a DuckAssistBot request?
Treat the user-agent as a clue and look for operator-published IP, reverse-DNS, or signature guidance.
Data & Sources
- DuckAssistBot source reference - Source used to verify DuckAssistBot.