Agent Web Index › cencenelec.eu

Can AI assistants read cencenelec.eu?

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.

C69 / 100

6 of 6 crawlers can read this page.

More readable than 34% of the 46,907 sites measured so far. No JSON-LD.

What each crawler got back

Crawler	HTTP	Result	robots.txt
ClaudeBot (Claude)	200	can read it	no-rule
GPTBot (ChatGPT)	200	can read it	no-rule
OAI-SearchBot (ChatGPT Search)	200	can read it	no-rule
PerplexityBot (Perplexity)	200	can read it	no-rule
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	can read it	no-rule
Amazonbot (Alexa, Rufus)	200	can read it	no-rule

The checks

Answers AI agents like it answers people100%
Readable without JavaScript100%
robots.txt lets the crawlers in100%
Facts in JSON-LD0%
Content reachable, not buried60%
Publishes a map of itself0%
Plain structure50%

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<a href="https://shop.lumnika.com/ai-readiness/cencenelec.eu"><img src="https://shop.lumnika.com/ai-readiness/cencenelec.eu/badge.svg" alt="AI readability"></a>

Method. Six live HTTP requests 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, 46,907 domains measured, updated continuously.