Who blocks AI · #911 in the Majestic Million
Does welt.de block AI crawlers?
Yes. welt.de’s robots.txt blocks 9 of the 19 AI crawlers we track, including PerplexityBot, CCBot, Applebot-Extended and 6 more. It also blocks PetalBot and Baiduspider among search engines.
GPTBotAllowedOAI-SearchBotAllowedClaudeBotAllowedPerplexityBotBlockedGoogle-ExtendedAllowedCCBotBlocked- robots.txt
- www.welt.de/robots.txt · 140 lines
- llms.txt
- none
- Checked
- 9 November 2026, as canaicrawl. We check again every week.
Every bot, and the line that decides
Search engines
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
Googlebot | Allowed | no rule matches the home page | |
Bingbot | Microsoft | Allowed | no rule matches the home page |
DuckDuckBot | DuckDuckGo | Allowed | no rule matches the home page |
Applebot | Apple | Allowed | no rule matches the home page |
PetalBot | Huawei | Blocked | line 88 · Disallow: / under User-agent: PetalBot |
YandexBot | Yandex | Allowed | no rule matches the home page |
Baiduspider | Baidu | Blocked | line 88 · Disallow: / under User-agent: Baiduspider |
AI search
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
OAI-SearchBot | OpenAI | Allowed | no rule matches the home page |
PerplexityBot | Perplexity | Blocked | line 88 · Disallow: / under User-agent: PerplexityBot |
Claude-SearchBot | Anthropic | Allowed | no rule matches the home page |
DuckAssistBot | DuckDuckGo | Blocked | line 88 · Disallow: / under User-agent: DuckAssistBot |
Amazonbot | Amazon | Blocked | line 88 · Disallow: / under User-agent: Amazonbot |
YouBot | You.com | Blocked | line 88 · Disallow: / under User-agent: YouBot |
AI training
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
GPTBot | OpenAI | Allowed | no rule matches the home page |
ClaudeBot | Anthropic | Allowed | no rule matches the home page |
Google-Extended | Allowed | no rule matches the home page | |
CCBot | Common Crawl | Blocked | line 88 · Disallow: / under User-agent: CCBot |
Applebot-Extended | Apple | Blocked | line 88 · Disallow: / under User-agent: Applebot-Extended |
GoogleOther | Allowed | no rule matches the home page | |
Meta-ExternalAgent | Meta | Allowed | no rule matches the home page |
Bytespider | ByteDance | Blocked | line 88 · Disallow: / under User-agent: Bytespider |
User-triggered fetchers
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
ChatGPT-User | OpenAI | Allowed | no rule matches the home page |
Claude-User | Anthropic | Allowed | no rule matches the home page |
Perplexity-User | Perplexity | Blocked | line 88 · Disallow: / under User-agent: Perplexity-User |
MistralAI-User | Mistral | Blocked | line 88 · Disallow: / under User-agent: MistralAI-User |
Meta-ExternalFetcher | Meta | Allowed | no rule matches the home page |
SEO tools
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
AhrefsBot | Ahrefs | Blocked | line 88 · Disallow: / under User-agent: AhrefsBot |
SemrushBot | Semrush | Blocked | line 88 · Disallow: / under User-agent: SemrushBot |
MJ12bot | Majestic | Allowed | no rule matches the home page |
DotBot | Moz | Blocked | line 88 · Disallow: / under User-agent: dotbot |
View www.welt.de/robots.txt · 140 lines
What do the bots actually get?
This page reads robots.txt, which states what welt.de asks of crawlers. A firewall or CDN can still refuse a bot that robots.txt allows. The live check requests the page as each bot and shows the status it gets.
Run a live check on welt.de Test a path in the robots.txt tester
History
- 19 October 2026: first checked.
Questions
Does welt.de block GPTBot?
No. welt.de’s robots.txt lets GPTBot crawl the site. GPTBot is OpenAI’s crawler for training data; blocking it doesn’t affect ChatGPT search, which uses OAI-SearchBot. Checked 9 November 2026.
Does welt.de block ClaudeBot?
No. welt.de’s robots.txt lets ClaudeBot crawl the site. ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.
Does welt.de block Google-Extended?
No. welt.de’s robots.txt lets Google-Extended crawl the site. Google-Extended is the token that controls whether Google may use pages for Gemini training and grounding; it doesn’t affect Google Search. Checked 9 November 2026.
Does welt.de block PerplexityBot?
Yes. welt.de’s robots.txt disallows PerplexityBot from the whole site (line 88: Disallow: /). PerplexityBot is the crawler that indexes pages for Perplexity’s answers. Checked 9 November 2026.
Can ChatGPT search find welt.de?
Yes. welt.de’s robots.txt lets OAI-SearchBot crawl the site. OAI-SearchBot is the crawler behind ChatGPT search; blocking it keeps the site out of ChatGPT’s search answers. Checked 9 November 2026.