bloomberg.com: what it tells AI crawlers
On 27 October 2026, bloomberg.com's robots.txt fully blocked GPTBot, OAI-SearchBot, ClaudeBot, Claude-SearchBot, Google-Extended, PerplexityBot and CCBot.
Last verified 2026-10-28 03:59 UTC (daily run of 2026-10-27). Proof for that day.
- Panel
- top 1k (Tranco)
- robots.txt
- ok (HTTP 200) · https://www.bloomberg.com/robots.txt
unchanged since 2026-10-26 · sha2566879b4e3afbc243a…· view as recorded - The * group
- allows applies to every agent without its own group
Per AI bot, 2026-10-27
| User agent | Verdict | How |
|---|---|---|
| GPTBot | blocks | named in its own group |
| OAI-SearchBot | blocks | named in its own group |
| ChatGPT-User | blocks | named in its own group |
| ClaudeBot | blocks | named in its own group |
| Claude-SearchBot | blocks | named in its own group |
| Claude-User | blocks | named in its own group |
| PerplexityBot | blocks | named in its own group |
| Perplexity-User | allows | through the * group |
| Googlebot | allows | through the * group |
| Google-Extended | blocks | named in its own group |
| Applebot-Extended | blocks | named in its own group |
| CCBot | blocks | named in its own group |
| Bytespider | blocks | named in its own group |
| Meta-ExternalAgent | blocks | named in its own group |
| Amazonbot | blocks | named in its own group |
| anthropic-ai | blocks | named in its own group |
| Brightbot | blocks | named in its own group |
| Claude-Web | blocks | named in its own group |
| cohere-ai | blocks | named in its own group |
| Diffbot | blocks | named in its own group |
| DuckAssistBot | blocks | named in its own group |
| Google-CloudVertexBot | blocks | named in its own group |
| meta-externalfetcher | blocks | named in its own group |
| PetalBot | blocks | named in its own group |
| YouBot | blocks | named in its own group |
Other signals
| Publishes /llms.txt | not observed |
| Publishes /ai.txt | not observed |
| Publishes /.well-known/tdmrep.json | no |
| Reserves TDM rights (TDMRep file, header or meta) | not observed |
| Declares Content Signals (robots.txt or header) | not observed |
| Says ai-train=no in a Content Signal | not observed |
| Points to an RSL licence (robots.txt License line or Link header) | not observed |
| Answers with an x402 payment offer (lower bound: only the homepage is probed) | not observed |
| Answers HTTP 402 Payment Required (lower bound: only the homepage is probed) | not observed |
| Sends noai / noimageai directives | not observed |
| Refused our fetcher (403 / challenge) | no |
robots.txt as recorded sha256 5cfb88f28c8ac729…
# Bot rules: # 1. A bot may not injure a human being or, through inaction, allow a human being to come to harm. # 2. A bot must obey orders given it by human beings except where such orders would conflict with the First Law. # 3. A bot must protect its own existence as long as such protection does not conflict with the First or Second Law. # If you can read this then you should apply here https://www.bloomberg.com/careers/ 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: Mediapartners-Google Disallow: /about/careers Disallow: /about/careers/ Disallow: /offlinemessage/ Disallow: /apps/fbk Disallow: /bb/newsarchive/ Disallow: /apps/news User-agent: Spinn3r Disallow: /podcasts/ Disallow: /feed/podcast/ Disallow: /bb/avfile/ User-agent: Googlebot-News Disallow: /sponsor/ Disallow: /news/sponsors/* Disallow: /news/terminal/* User-agent: Twitterbot Allow: /en/news/thp User-agent: GPTBot Disallow: / User-agent: CCBot Disallow: / User-agent: Google-Extended Disallow: / # Development Tools User-agent: Python-urllib Disallow: / User-agent: python-requests Disallow: / User-agent: Python-http-client Disallow: / # AI/LLM Bots User-agent: ChatGPT-User 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: Claude-Web Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc 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: YouBot Disallow: / Allow: /professional Allow: /company Allow: /latam Allow: /faq Allow: /tc # Google Services User-agent: Google-Apps Disallow: / User-agent: Google-Apps-Script Disallow: / User-agent: AppEngine-Google Disallow: / User-agent: Google-Cloud Disallow: / User-agent: Google-CloudVertexBot Disallow: / # Major Company Bots User-agent: AmazonBot Disallow: / User-agent: AmazonAdBot Disallow: / User-agent: ByteSpider Disallow: / User-agent: Meta-ExternalAgent Disallow: / # Feed & Content Aggregators User-agent: Feedly Disallow: / User-agent: FeedlyBot Disallow: / User-agent: FeedlyApp Disallow: / User-agent: MWFeedParser Disallow: / # Analytics & Marketing User-agent: comscore Disallow: / User-agent: Comscore Disallow: / User-agent: HubSpot Disallow: / User-agent: hubspot Disallow: / User-agent: Criteo Disallow: / User-agent: criteo-bot Disallow: / User-agent: Peer39_Crawler Disallow: / User-agent: rogerbot Disallow: / User-agent: linkdexbot Disallow: / User-agent: NTENT Disallow: / User-agent: AndersPinkBot Disallow: / User-agent: IndeedBot Disallow: / # Search Engine Bots User-agent: MJ12bot Disallow: / User-agent: PetalBot Disallow: / User-agent: YisouSpider Disallow: / User-agent: 360Spider Disallow: / User-agent: Qwantify Disallow: / User-agent: ToutiaoSpider Disallow: / # Monitoring & Security User-agent: Screaming Frog SEO Spider Disallow: / User-agent: PRTG Disallow: / User-agent: FreshpingBot Disallow: / User-agent: Panopta Disallow: / User-agent: DatadogSynthetics Disallow: / User-agent: Rackspace Disallow: / User-agent: censys Disallow: / User-agent: burp Disallow: / User-agent: Burp Disallow: / User-agent: check_http Disallow: / User-agent: DotcomMonitor Disallow: / User-agent: WatchSumo Disallow: / User-agent: WormlyBot Disallow: / User-agent: CalibreBot Disallow: / User-agent: AudistoBot Disallow: / # Social & Content User-agent: Hatena Disallow: / User-agent: Hatena-Bookmark Disallow: / User-agent: EveryoneSocialBot Disallow: / User-agent: Diffbot Disallow: / User-agent: CCBot Disallow: / User-agent: Netvibes Disallow: / User-agent: WebCEO Disallow: / User-agent: Postano Disallow: / User-agent: RebelMouse Disallow: / User-agent: Muck-Rack Disallow: / User-agent: InstapaperViewer Disallow: / User-agent: Twurly Disallow: / User-agent: LivelapBot Disallow: / User-agent: DatagnionBot Disallow: / User-agent: Linespider Disallow: / User-agent: Discourse Disallow: / # Potentially Malicious User-agent: Medusa Disallow: / User-agent: pingback Disallow: / User-agent: WordPress Disallow: / User-agent: wp_ping Disallow: / User-agent: MauiBot Disallow: / User-agent: ltx71 Disallow: / User-agent: WeSEE Disallow: / User-agent: halebot Disallow: / User-agent: BrightBot Disallow: / # Gaming/3D User-agent: UnityPlayer Disallow: / # Sitemaps app Sitemap: https://www.bloomberg.com/sitemaps/news/index.xml Sitemap: https://www.bloomberg.com/sitemaps/news/latest.xml Sitemap: https://www.bloomberg.com/sitemaps/collections/index.xml Sitemap: https://www.bloomberg.com/sitemaps/media/video/index.xml Sitemap: https://www.bloomberg.com/sitemaps/media/audio/index.xml Sitemap: https://www.bloomberg.com/sitemaps/people/profiles/index.xml Sitemap: https://www.bloomberg.com/sitemaps/companies/public-company/index.xml Sitemap: https://www.bloomberg.com/sitemaps/companies/private-company/index.xml Sitemap: https://www.bloomberg.com/sitemaps/securites/index.xml # Billionaires, owned by graphics Sitemap: https://www.bloomberg.com/billionaires/sitemap.xml
robots.txt versions
| From | Through | State | Version | |
|---|---|---|---|---|
| 2026-10-26 | 2026-10-28 | ok 200 | 6879b4e3afbc |
Timeline of changes
| Date | What changed |
|---|---|
| No changes since the first observation (2026-10-26). | |
Reconstructed history (Common Crawl)
From Common Crawl's robots.txt captures: what CCBot was served, one crawl per quarter. A separate series from the daily observations above; a 403 here means Common Crawl was refused, not this ledger.
| Crawl | Host | State | GPTBot | OAI-SearchBot | ChatGPT-User | ClaudeBot | Claude-SearchBot | Claude-User | PerplexityBot |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-21 CC-MAIN-2026-39 | www.bloomberg.com | ok view | blocks | blocks | unknown | blocks | blocks | unknown | blocks |
| 2025-09-15 CC-MAIN-2025-38 | www.bloomberg.com | ok view | blocks | allows | unknown | allows | allows | unknown | blocks |
| 2024-09-16 CC-MAIN-2024-38 | www.bloomberg.com | ok view | blocks | allows | unknown | allows | allows | unknown | allows |
| 2023-10-02 CC-MAIN-2023-40 | www.bloomberg.com | ok view | blocks | allows | unknown | allows | allows | unknown | allows |
| 2022-10-03 CC-MAIN-2022-40 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2021-09-27 CC-MAIN-2021-39 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2020-09-28 CC-MAIN-2020-40 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2019-09-23 CC-MAIN-2019-39 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2018-09-24 CC-MAIN-2018-39 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2018-04-23 CC-MAIN-2018-17 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2018-01-29 CC-MAIN-2018-05 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2017-10-23 CC-MAIN-2017-43 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2017-09-25 CC-MAIN-2017-39 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2017-07-24 CC-MAIN-2017-30 | www.bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2017-04-24 CC-MAIN-2017-17 | bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2017-01-23 CC-MAIN-2017-04 | bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2016-10-03 CC-MAIN-2016-40 | bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2016-09-05 CC-MAIN-2016-36 | bloomberg.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
Evidence
Every daily observation of bloomberg.com is a leaf in that day's Merkle tree. Proof of the robots.txt line for 2026-10-27: audit path (JSON), day root and OpenTimestamps proof (complete (bitcoin block 973493)).
API: https://infrarabbit.com/crawlers/api/v1/policy/bloomberg.com