Identification
Its full user-agent string, exactly as it arrives at the gate:
DuckDuckGo does not publish a way to verify DuckDuckBot's traffic. Treat its user agent as a claim, not proof: anyone can send it. Read DuckDuckGo's documentation.
How to block DuckDuckBot
Add these two lines to the robots.txt file at the root of your site. Well-behaved crawlers read it before they crawl, so the change applies from DuckDuckBot's next visit. Nothing else on your site needs to change.
# Block DuckDuckBot from the whole site User-agent: DuckDuckBot Disallow: /
Or let it visit but keep it away from part of the site:
# Let it in, but keep it out of one room User-agent: DuckDuckBot Allow: / Disallow: /members/
Observed behaviour
Nothing on record in the last 30 days.
Requested 0 disallowed pages out of 0 requests. Never read robots.txt.
Has never followed the hidden link to /trap/. Either well trained or very lucky.
Where it comes from
The networks DuckDuckBot's visits came from:
Nothing on record in the last 30 days.
Networks and countries come from the visitor's IP address, looked up in a local copy of the DB-IP database. The addresses themselves are never stored.
Questions site owners ask
Does DuckDuckBot respect robots.txt?
We can't say yet. It has not fetched robots.txt here, and it has not touched a disallowed page either.
Will blocking DuckDuckBot hurt my search rankings?
Yes, for DuckDuckGo's search engine. Blocked pages can drop out of its results. Other search engines are unaffected.
How often does DuckDuckBot visit?
Here, about 0 requests a day over the last week. Visits to your site depend on its size, how often it changes, and how many links point to it.