healthline.com: what it tells AI crawlers
On 27 October 2026, healthline.com's robots.txt fully blocked GPTBot, ClaudeBot and CCBot.
Last verified 2026-10-28 03:59 UTC (daily run of 2026-10-27). Proof for that day.
- Panel
- top 10k (Tranco)
- robots.txt
- ok (HTTP 200) · https://www.healthline.com/robots.txt
unchanged since 2026-10-26 · sha256bdd5879797eabcb9…· 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 | allows | through the * group |
| ChatGPT-User | allows | through the * group |
| ClaudeBot | blocks | named in its own group |
| Claude-SearchBot | allows | through the * group |
| Claude-User | allows | through the * group |
| PerplexityBot | allows | through the * group |
| Perplexity-User | allows | through the * group |
| Googlebot | allows | through the * group |
| Google-Extended | allows | through the * 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 |
| amazon-kendra | blocks | named in its own group |
| amazon-QBusiness | blocks | named in its own group |
| AmazonBuyForMe | blocks | named in its own group |
| Amzn-SearchBot | blocks | named in its own group |
| Amzn-User | blocks | named in its own group |
| anthropic-ai | blocks | named in its own group |
| bedrockbot | blocks | named in its own group |
| Diffbot | blocks | named in its own group |
| FacebookBot | blocks | named in its own group |
| NovaAct | blocks | named in its own group |
| omgili | blocks | named in its own group |
| Timpibot | blocks | named in its own group |
| Webzio-Extended | blocks | named in its own group |
Other signals
| Publishes /llms.txt | no |
| Publishes /ai.txt | no |
| Publishes /.well-known/tdmrep.json | no |
| Reserves TDM rights (TDMRep file, header or meta) | no |
| Declares Content Signals (robots.txt or header) | no |
| Says ai-train=no in a Content Signal | no |
| Points to an RSL licence (robots.txt License line or Link header) | no |
| Answers with an x402 payment offer (lower bound: only the homepage is probed) | no |
| Answers HTTP 402 Payment Required (lower bound: only the homepage is probed) | no |
| Sends noai / noimageai directives | no |
| Refused our fetcher (403 / challenge) | no |
robots.txt as recorded sha256 e8801961541f66ab…
User-agent: * Allow: /corporate/microsites/tysabri/ms-assessment-tool.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-page1.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-page2.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-page3.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-page4.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-page5.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-page6.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-page7.html Allow: /corporate/microsites/tysabri/ms-assessment-tool-pageresults.html Allow: /ads.txt Disallow: /bmajax/ Disallow: /v2/ Disallow: /vp/ Disallow: /search? Disallow: /corporate/ Disallow: /health/mirgraine-headaches Disallow: /health/wp-* Disallow: /nutrition/wp-* Disallow: /health-news/wp-* Disallow: /health/*/wp-* Disallow: /nutrition/*/wp-* Disallow: /health-news/*/wp-* Disallow: /hlcmsresource/*.txt$ Disallow: /hlcmsresource/*.xml$ User-agent: Mediapartners-Google Disallow: User-agent: Adsbot-Google Disallow: User-agent: Twitterbot Disallow: User-agent: NimbleCrawler Disallow: / User-agent: grapeshot Disallow: User-agent: BotRightHere Disallow: / User-agent: WebZip Disallow: / User-agent: larbin Disallow: / User-agent: b2w/0.1 Disallow: / User-agent: Copernic Disallow: / User-agent: psbot Disallow: / User-agent: Python-urllib Disallow: / User-agent: URL_Spider_Pro Disallow: / User-agent: CherryPicker Disallow: / User-agent: EmailCollector Disallow: / User-agent: EmailSiphon Disallow: / User-agent: WebBandit Disallow: / User-agent: EmailWolf Disallow: / User-agent: ExtractorPro Disallow: / User-agent: CopyRightCheck Disallow: / User-agent: Crescent Disallow: / User-agent: SiteSnagger Disallow: / User-agent: ProWebWalker Disallow: / User-agent: CheeseBot Disallow: / User-agent: LNSpiderguy Disallow: / User-agent: Alexibot Disallow: / User-agent: Teleport Disallow: / User-agent: TeleportPro Disallow: / User-agent: MIIxpc Disallow: / User-agent: Telesoft Disallow: / User-agent: Website Quester Disallow: / User-agent: WebZip Disallow: / User-agent: moget/2.1 Disallow: / User-agent: WebZip/4.0 Disallow: / User-agent: WebStripper Disallow: / User-agent: WebSauger Disallow: / User-agent: WebCopier Disallow: / User-agent: NetAnts Disallow: / User-agent: Mister PiX Disallow: / User-agent: WebAuto Disallow: / User-agent: TheNomad Disallow: / User-agent: WWW-Collector-E Disallow: / User-agent: RMA Disallow: / User-agent: libWeb/clsHTTP Disallow: / User-agent: asterias Disallow: / User-agent: httplib Disallow: / User-agent: turingos Disallow: / User-agent: spanner Disallow: / User-agent: InfoNaviRobot Disallow: / User-agent: Harvest/1.5 Disallow: / User-agent: Bullseye/1.0 Disallow: / User-agent: Mozilla/4.0 (compatible; BullsEye; Windows 95) Disallow: / User-agent: Crescent Internet ToolPak HTTP OLE Control v.1.0 Disallow: / User-agent: CherryPickerSE/1.0 Disallow: / User-agent: CherryPickerElite/1.0 Disallow: / User-agent: WebBandit/3.50 Disallow: / User-agent: NICErsPRO Disallow: / User-agent: Microsoft URL Control - 5.01.4511 Disallow: / User-agent: DittoSpyder Disallow: / User-agent: Foobot Disallow: / User-agent: SpankBot Disallow: / User-agent: BotALot Disallow: / User-agent: lwp-trivial/1.34 Disallow: / User-agent: lwp-trivial Disallow: / User-agent: BunnySlippers Disallow: / User-agent: Microsoft URL Control - 6.00.8169 Disallow: / User-agent: URLy Warning Disallow: / User-agent: Wget/1.6 Disallow: / User-agent: Wget/1.5.3 Disallow: / User-agent: Wget Disallow: / User-agent: LinkWalker Disallow: / User-agent: cosmos Disallow: / User-agent: moget Disallow: / User-agent: hloader Disallow: / User-agent: humanlinks Disallow: / User-agent: LinkextractorPro Disallow: / User-agent: Offline Explorer Disallow: / User-agent: Mata Hari Disallow: / User-agent: LexiBot Disallow: / User-agent: Web Image Collector Disallow: / User-agent: The Intraformant Disallow: / User-agent: True_Robot/1.0 Disallow: / User-agent: True_Robot Disallow: / User-agent: BlowFish/1.0 Disallow: / User-agent: JennyBot Disallow: / User-agent: MIIxpc/4.2 Disallow: / User-agent: BuiltBotTough Disallow: / User-agent: ProPowerBot/2.14 Disallow: / User-agent: BackDoorBot/1.0 Disallow: / User-agent: toCrawl/UrlDispatcher Disallow: / User-agent: WebEnhancer Disallow: / User-agent: suzuran Disallow: / User-agent: TightTwatBot Disallow: / User-agent: VCI WebViewer VCI WebViewer Win32 Disallow: / User-agent: VCI Disallow: / User-agent: Szukacz/1.4 Disallow: / User-agent: QueryN Metasearch Disallow: / User-agent: Openfind data gatherer Disallow: / User-agent: Openfind Disallow: / User-agent: Zeus Disallow: / User-agent: RepoMonkey Bait & Tackle/v1.01 Disallow: / User-agent: RepoMonkey Disallow: / User-agent: Microsoft URL Control Disallow: / User-agent: Openbot Disallow: / User-agent: URL Control Disallow: / User-agent: Zeus Link Scout Disallow: / User-agent: Zeus 32297 Webster Pro V2.9 Win32 Disallow: / User-agent: Webster Pro Disallow: / User-agent: EroCrawler Disallow: / User-agent: LinkScan/8.1a Unix Disallow: / User-agent: Keyword Density/0.9 Disallow: / User-agent: Kenjin Spider Disallow: / User-agent: Iron33/1.0.2 Disallow: / User-agent: Bookmark search tool Disallow: / User-agent: GetRight/4.2 Disallow: / User-agent: FairAd Client Disallow: / User-agent: Gaisbot Disallow: / User-agent: Aqua_Products Disallow: / User-agent: Radiation Retriever 1.1 Disallow: / User-agent: Flaming AttackBot Disallow: / User-agent: Oracle Ultra Search Disallow: / User-agent: MSIECrawler Disallow: / User-agent: PerMan Disallow: / User-agent: searchpreview Disallow: / User-agent: TurnitinBot Disallow: / User-agent: wget Disallow: / User-agent: ExtractorPro Disallow: / User-agent: WebZIP/4.21 Disallow: / User-agent: WebZIP/5.0 Disallow: / User-agent: HTTrack 3.0 Disallow: / User-agent: TurnitinBot/1.5 Disallow: / User-agent: WebCopier v3.2a Disallow: / User-agent: WebCapture 2.0 Disallow: / User-agent: WebCopier v.2.2 Disallow: / User-agent: Callpod Keeper Disallow: / User-agent: Go-http-client Disallow: / User-agent: Java Browser Disallow: / User-agent: PHP Disallow: / User-agent: Clickagy Intelligence Disallow: / User-agent: uipbot Disallow: / Sitemap: https://www.healthline.com/sitemap.xml
robots.txt versions
| From | Through | State | Version | |
|---|---|---|---|---|
| 2026-10-26 | 2026-10-27 | ok 200 | bdd5879797ea |
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.healthline.com | ok view | blocks | allows | unknown | blocks | allows | unknown | allows |
| 2025-09-15 CC-MAIN-2025-38 | www.healthline.com | ok view | blocks | allows | unknown | blocks | allows | unknown | allows |
| 2024-09-16 CC-MAIN-2024-38 | www.healthline.com | ok view | blocks | allows | unknown | allows | allows | unknown | allows |
| 2023-10-02 CC-MAIN-2023-40 | www.healthline.com | ok view | blocks | allows | unknown | allows | allows | unknown | allows |
| 2022-10-03 CC-MAIN-2022-40 | www.healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2021-09-27 CC-MAIN-2021-39 | www.healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2020-09-28 CC-MAIN-2020-40 | www.healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2019-09-23 CC-MAIN-2019-39 | www.healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2018-09-24 CC-MAIN-2018-39 | www.healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2017-09-25 CC-MAIN-2017-39 | www.healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2017-01-23 CC-MAIN-2017-04 | healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2016-10-03 CC-MAIN-2016-40 | www.healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2016-09-05 CC-MAIN-2016-36 | healthline.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
Evidence
Every daily observation of healthline.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/healthline.com