Does bloomberg.com block AI crawlers?
Blocks AI training and AI answers
bloomberg.com blocks both AI training crawlers and AI answer crawlers in its robots.txt.
Checked from bloomberg.com/robots.txt. Robots rules change; the live file is the source of truth.
- AI crawlers blocked
- 12 of 12
- AI bots named in robots.txt
- 13
- llms.txt
- Not found
- Popularity
- Tranco top 500 (#382)
Can AI assistants cite bloomberg.com?
- ChatGPT search: its search crawler is blocked
- Claude: its search crawler is blocked
- Perplexity: its search crawler is blocked
bloomberg.com opts out of AI training by OpenAI, Anthropic, Google, Apple, Common Crawl, ByteDance, Meta. Training crawlers and answer crawlers are separate: blocking training doesn't by itself remove a site from AI answers.
AI crawler access, bot by bot
| Crawler | Used for | Status on bloomberg.com |
|---|---|---|
| GPTBotOpenAI | AI training | Blocked |
| OAI-SearchBotOpenAI | AI answers | Blocked |
| ChatGPT-UserOpenAI | AI answers | Blocked |
| ClaudeBotAnthropic | AI training | Blocked |
| Claude-SearchBotAnthropic | AI answers | Blocked |
| Claude-UserAnthropic | AI answers | Blocked |
| PerplexityBotPerplexity | AI answers | Blocked |
| Google-ExtendedGoogle | AI training | Blocked |
| Applebot-ExtendedApple | AI training | Blocked |
| CCBotCommon Crawl | AI training | Blocked |
| BytespiderByteDance | AI training | Blocked |
| Meta-ExternalAgentMeta | AI training | Blocked |
How bloomberg.com compares
- 19% of the 1,278 popular sites we checked block GPTBot; bloomberg.com is one of them.
- 18% of the 1,278 popular sites we checked block ClaudeBot; bloomberg.com is one of them.
- 14% of the 1,278 popular sites we checked block PerplexityBot; bloomberg.com is one of them.
- Among 195 sites of similar popularity, 29% block at least one AI crawler.
The robots.txt rules that apply to AI crawlers
User-agent: * Disallow: /polska Allow: /account/newsletters Disallow: /account/* Disallow: /tosv*.html Disallow: /search Disallow: /company/search/ Disallow: /professional/search/ Disallow: /impact/search/ Disallow: /ux/search/ Disallow: /wnwi/search/ Disallow: /gei/search/ Disallow: /impact/search/ Disallow: /netzeropathfinders/search/ Disallow: /notices/search/ Disallow: /distribution/search/ Disallow: /ukinnovators/search/ Disallow: /latam/search/ Disallow: /faq/search/ Disallow: /tc/search/ Disallow: /subscriptions/group/manage/ Disallow: /preview/lineup Disallow: /preview/articles Disallow: /explore/ Disallow: /press-releases/ Disallow: /artemis/ Disallow: /sessions-publisher/ User-agent: Google-Extended Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc User-agent: CCBot Disallow: / User-agent: anthropic-ai Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc User-agent: PerplexityBot Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc User-agent: GPTBot Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc User-agent: ClaudeBot Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc User-agent: OAI-SearchBot Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc Allow: /$ Allow: /europe$ Allow: /europe/$ Allow: /asia$ Allow: /asia/$ Allow: /jp$ Allow: /jp/$ Allow: /india$ Allow: /india/$ Allow: /middleeast$ Allow: /middleeast/$ Allow: /africa$ Allow: /africa/$ Allow: /canada$ Allow: /canada/$ Allow: /uk$ Allow: /uk/$ Allow: /latinamerica$ Allow: /latinamerica/$ User-agent: Claude-SearchBot Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc Allow: /$ Allow: /europe$ Allow: /europe/$ Allow: /asia$ Allow: /asia/$ Allow: /jp$ Allow: /jp/$ Allow: /india$ Allow: /india/$ Allow: /middleeast$ Allow: /middleeast/$ Allow: /africa$ Allow: /africa/$ Allow: /canada$ Allow: /canada/$ Allow: /uk$ Allow: /uk/$ Allow: /latinamerica$ Allow: /latinamerica/$ User-agent: ChatGPT-User Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc Allow: /$ Allow: /europe$ Allow: /europe/$ Allow: /asia$ Allow: /asia/$ Allow: /jp$ Allow: /jp/$ Allow: /india$ Allow: /india/$ Allow: /middleeast$ Allow: /middleeast/$ Allow: /africa$ Allow: /africa/$ Allow: /canada$ Allow: /canada/$ Allow: /uk$ Allow: /uk/$ Allow: /latinamerica$ Allow: /latinamerica/$ User-agent: Claude-User Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc Allow: /$ Allow: /europe$ Allow: /europe/$ Allow: /asia$ Allow: /asia/$ Allow: /jp$ Allow: /jp/$ Allow: /india$ Allow: /india/$ Allow: /middleeast$ Allow: /middleeast/$ Allow: /africa$ Allow: /africa/$ Allow: /canada$ Allow: /canada/$ Allow: /uk$ Allow: /uk/$ Allow: /latinamerica$ Allow: /latinamerica/$ User-agent: ByteSpider Disallow: / User-agent: Meta-ExternalAgent Disallow: / User-agent: Applebot-Extended Disallow: / User-agent: CCBot Disallow: /
Excerpt: only groups for all user-agents (*) or named AI crawlers, up to 40 rules per group.
Sites with a similar AI policy
Does bloomberg.com block GPTBot?
Yes. As of Oct 2, 2026, bloomberg.com's robots.txt disallows GPTBot, OpenAI's training crawler.
Can ChatGPT search show results from bloomberg.com?
Its robots.txt blocks a ChatGPT search crawler, so ChatGPT search is unlikely to read or cite those pages.
Does bloomberg.com have an llms.txt file?
We didn't find a valid llms.txt at bloomberg.com/llms.txt when we checked.
Data: bloomberg.com's public robots.txt and llms.txt, fetched by AskableHQ. Popularity rank from the Tranco list (ID Y83YG). Methodology.