Can AI assistants read iex.nl?
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.
D54 / 100
0 of 6 crawlers can read this page.
More readable than 8% of the 47,977 sites measured so far.
No JSON-LD.
What each crawler got back
| Crawler | HTTP | Result | robots.txt |
|---|
| ClaudeBot (Claude) | 404 |
error |
blocked |
| GPTBot (ChatGPT) | 200 |
allowed by the server, blocked in robots.txt |
blocked |
| OAI-SearchBot (ChatGPT Search) | 200 |
allowed by the server, blocked in robots.txt |
blocked |
| PerplexityBot (Perplexity) | 200 |
allowed by the server, blocked in robots.txt |
blocked |
| 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 |
no-rule |
| Meta-ExternalAgent (Meta AI) | 200 |
allowed by the server, blocked in robots.txt |
blocked |
| Amazonbot (Alexa, Rufus) | 200 |
allowed by the server, blocked in robots.txt |
blocked |
What to change, in order
- Declare the facts in JSON-LD
There is no JSON-LD on the page, so every fact — who you are, what you sell, the price — has to be guessed out of the prose and the layout. A schema.org block is the difference between being quoted correctly and being paraphrased.
- Publish sitemap.xml and llms.txt
sitemap.xml and llms.txt are 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.
- 6 crawlers are named and refused in robots.txt — a deliberate choice
ClaudeBot, GPTBot, OAI-SearchBot, PerplexityBot, Meta-ExternalAgent, Amazonbot are blocked by a rule that names them. Nothing to fix here: this page records what is true, not what should be. It is listed so the deliberate part of the block is not confused with the accidental part above.
Get told if this changes
One email only when a measured crawler flips on iex.nl, served to refused or back. No schedule, no newsletter; double opt-in, one-click stop.
The checks
- Answers AI agents like it answers people86%
- Readable without JavaScript100%
- robots.txt lets the crawlers in14%
- Facts in JSON-LD0%
- Content reachable, not buried59%
- Publishes a map of itself0%
- Plain structure90%
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<a href="https://aivis.lumnika.com/ai-readiness/iex.nl"><img src="https://aivis.lumnika.com/ai-readiness/iex.nl/badge.svg" alt="AI readability"></a>