# DuckAssistBot

> Fetches pages so DuckAssist can generate and cite answers inside DuckDuckGo.

| field | value |
|---|---|
| operator | DuckDuckGo |
| category | AI search crawlers |
| robots.txt token | `DuckAssistBot` |
| user-agent contains | `DuckAssistBot` |
| robots.txt | obeys robots.txt (documented) |
| verify by | no published verification method |
| published IP ranges | none published |
| prefixes mirrored | 0 IPv4 / 0 IPv6 |
| operator docs | https://duckduckgo.com/duckduckgo-help-pages/results/duckassistbot/ |
| last reviewed | 2026-09-01 |

## What blocking it costs you

No DuckAssist answers or citations from your site. Ordinary DuckDuckGo results are unaffected.

## Full user-agent string

```
Mozilla/5.0 (compatible; DuckAssistBot/1.0; +https://duckduckgo.com/duckassistbot)
```

## Block it

```
User-agent: DuckAssistBot
Disallow: /
```

## Allow it

```
User-agent: DuckAssistBot
Allow: /
```

JSON: https://www.pathwren.workers.dev/crawler/duckassistbot.json · index: https://www.pathwren.workers.dev/llms.txt