Agent Web Index › fredhutch.org

Can AI assistants read fredhutch.org?

Measured on 2026-09-19 by asking the site 7 times — once as a browser, once as each of the 6 crawlers that feed ChatGPT, Claude, Perplexity, Gemini, Meta AI, Apple Intelligence and Doubao — and comparing what came back. The AI-training opt-out tokens that never crawl are read from robots.txt instead.

B83 / 100
6 of 6 crawlers can read this page.
More readable than 69% of the 47,315 sites measured so far. Structured data: Organization.

What each crawler got back

CrawlerHTTPResultrobots.txt
ClaudeBot (Claude)200 can read it allowed-by-star
GPTBot (ChatGPT)200 can read it allowed-by-star
OAI-SearchBot (ChatGPT Search)200 can read it allowed-by-star
PerplexityBot (Perplexity)200 can read it allowed-by-star
Google-Extended (Gemini, AI Overviews)
a robots.txt token, not a crawler: it controls how already-crawled pages may be used, and never makes a request of its own
not opted out allowed-by-star
Meta-ExternalAgent (Meta AI)200 can read it allowed-by-star
Amazonbot (Alexa, Rufus)200 can read it allowed-by-star

Fastly answers for this domain. Where a crawler above is refused while robots.txt allows it, the rule is applied by that edge, not written by the site — see how often each edge does this.

What to change, in order

  1. Publish llms.txt
    llms.txt is missing, so an assistant has to discover the site by following links. llms.txt is the emerging convention for telling an assistant which pages actually matter.

The checks

Re-run this audit live → Full AI-visibility report for fredhutch.org →

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fredhutch.org AI readability: B 83/100
<a href="https://shop.lumnika.com/ai-readiness/fredhutch.org"><img src="https://shop.lumnika.com/ai-readiness/fredhutch.org/badge.svg" alt="AI readability"></a>
Method. 7 live HTTP requests (one per crawler, one as a browser) plus robots.txt, llms.txt, sitemap.xml and security.txt, 12-second timeout each, from a single vantage point. Blocking AI crawlers is a legitimate choice, not a failure: this page records what is true, not what should be. Domain comes from a shop-platform seed (Shopify/WooCommerce/Magento/BigCommerce/Shopline fingerprint or JSON-LD price), not the Tranco traffic ranking. One page per domain — the homepage — is audited.

Part of the Agent Web Index, 47,315 domains measured, updated continuously.