Can AI assistants read astrowoche.de?
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.
A88 / 100
5 of 6 crawlers can read this page.
More readable than 79% of the 47,315 sites measured so far.
Structured data: Organization, WebSite, SiteNavigationElement.
What each crawler got back
| Crawler | HTTP | Result | robots.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) | — |
no-answer |
allowed-by-star |
| Amazonbot (Alexa, Rufus) | 200 |
can read it |
allowed-by-star |
What to change, in order
- Let in the 1 crawler your own robots.txt already allows+1 crawler
Meta-ExternalAgent is turned away before reading the page (the connection never completed), while robots.txt permits it — so this block is not written in your site. No CDN signature was found in the response headers, so the refusal comes from the origin server itself or from a WAF this index does not recognise. Fixing it takes this domain from 5 to 6 of 6 crawlers.
- 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
- Answers AI agents like it answers people86%
- Readable without JavaScript100%
- robots.txt lets the crawlers in100%
- Facts in JSON-LD100%
- Content reachable, not buried83%
- Publishes a map of itself45%
- Plain structure70%
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Full AI-visibility report for astrowoche.de →
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