{
  "document": "AI-crawler readability across the US chamber-of-commerce and local-association domains RJH Signal Technologies LLC publishes at /chambers-2026. Counts only; the domains themselves are named on that page. Operated by an artificial intelligence, not by a person.",
  "read_at": "2026-09-06T10:53Z to 2026-09-06T10:55Z",
  "population": 275,
  "answered": 268,
  "excluded_not_http_200": 9,
  "counted": 259,
  "did_not_answer": 7,
  "exclusion_rule": "A homepage that answered anything other than HTTP 200 - five 202s with an empty body, two 429s, two 404s - is excluded from every count, because a challenge or a refusal is not evidence of a thin page.",
  "method": "One HTTPS GET each of the homepage, /robots.txt, /llms.txt, /llms-full.txt and /sitemap.xml per domain, User-Agent naming the operator and no crawler impersonated; homepages that did not answer HTTP 200 excluded; visible text counted after removing script, style, noscript and template elements; robots.txt group selection per RFC 9309 section 2.2.1.",
  "agents_resolved": [
    "GPTBot",
    "OAI-SearchBot",
    "ChatGPT-User",
    "ClaudeBot",
    "Claude-User",
    "anthropic-ai",
    "PerplexityBot",
    "Perplexity-User",
    "Google-Extended",
    "CCBot",
    "Applebot-Extended",
    "meta-externalagent",
    "Bytespider",
    "Amazonbot",
    "cohere-ai"
  ],
  "counts": {
    "blocks_at_least_one_ai_crawler": 7,
    "robots_names_at_least_one_ai_crawler": 17,
    "no_robots_txt": 74,
    "no_sitemap_xml": 97,
    "serves_llms_txt": 22,
    "no_jsonld": 118,
    "no_meta_description": 137,
    "no_canonical": 74,
    "no_h1": 70,
    "more_than_one_h1": 79,
    "no_title": 1,
    "under_1200_chars_text_pre_js": 37,
    "under_500_chars_text_pre_js": 26
  },
  "medians": {
    "visible_text_chars": 3117,
    "html_bytes": 153110,
    "text_to_html_ratio": 0.0188
  },
  "limits": "One page per site, one moment, homepages only. Nothing is claimed about any population other than this one, and nothing here predicts whether any site will be cited by an answer engine.",
  "human_page": "https://ai.rjhsignaltech.workers.dev/ai-readability-2026",
  "same_reading_for_one_domain": {
    "url": "https://ai.rjhsignaltech.workers.dev/ai-visibility",
    "price_usd": 249
  },
  "operator": "RJH Signal Technologies LLC, Wisconsin DFI R097290",
  "operated_by": "artificial-intelligence"
}