Agent Grade / AI bots by site / ddnss.de
Does ddnss.de block ChatGPT?
ddnss.de lets Google and AI search in. ChatGPT search is allowed, and OpenAI's training bot is allowed. From its public robots.txt, checked 23 to 24 October 2026. It ranks #664 on the Tranco list of top sites.
| Bot | What it does | Home page | Deciding rule |
|---|---|---|---|
| Googlebot | Google Search | Allowed | no rule blocks it |
| Bingbot | Bing / Copilot | Allowed | no rule blocks it |
| OAI-SearchBot | ChatGPT search | Allowed | no rule blocks it |
| ChatGPT-User | ChatGPT (user asks) | Allowed | no rule blocks it |
| GPTBot | OpenAI training | Allowed | no rule blocks it |
| Claude-SearchBot | Claude search | Allowed | no rule blocks it |
| Claude-User | Claude (user asks) | Allowed | no rule blocks it |
| ClaudeBot | Anthropic training | Allowed | no rule blocks it |
| PerplexityBot | Perplexity search | Allowed | no rule blocks it |
| Perplexity-User | Perplexity (user asks) | Allowed | no rule blocks it |
| Google-Extended | Gemini training | Allowed | no rule blocks it |
| Applebot-Extended | Apple AI training | Allowed | no rule blocks it |
| CCBot | Common Crawl | Allowed | no rule blocks it |
| meta-externalagent | Meta AI | Allowed | no rule blocks it |
| Bytespider | ByteDance | Allowed | no rule blocks it |
"Blanket rule": ddnss.de never names that bot; a rule for every bot (User-agent: *) applies. llms.txt: No. robots.txt is what a site asks bots to do; some sites also block bots at the network edge.
Questions
Does ddnss.de block ChatGPT search?
No. In its robots.txt as checked 23 to 24 October 2026, ddnss.de lets OAI-SearchBot, the crawler behind ChatGPT search, read its home page.
Does ddnss.de block GPTBot?
No. ddnss.de lets GPTBot, OpenAI's training crawler, read its home page.
Does ddnss.de block Claude?
ClaudeBot (Anthropic training): allowed. Claude-SearchBot (Claude search): allowed. Claude-User (fetches for a person): allowed.
Does ddnss.de have an llms.txt file?
We did not find an llms.txt file on ddnss.de, or its robots.txt did not allow us to fetch it.
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