crawlindex

Tranco rank 1,550

acm.org

acm.org scores 100 out of 100 for agent readiness. It allows every answer-surface AI crawler.

Score 100 out of 100, grade A, partial assessment
Last measured
2026-08-09 17:56 UTC
First seen
2026-08-09
Rubric / probe
v1.0.0 / v2.0.0

Served through Cloudflare. Compare against everything else on the same stack.

Partial assessment

Our measurement request was met with a bot challenge (HTTP 403 on the control request). Anything we could otherwise read from the page describes that challenge rather than the site, so those checks were excluded and the score renormalised over what remained. The robots.txt findings are unaffected: that file is fetched separately and was served normally.

Stated policy and actual behaviour disagree

robots.txt permits GPTBot, but the server refused it with HTTP 403. The stated policy and the actual behaviour disagree.

How this score is made up

Agent access38 / 38

  • Answer-surface crawlers allowed. All 11 answer-surface crawlers are allowed.
  • Secondary crawlers allowed. All 12 secondary crawlers are allowed.
  • Serves crawlers the same content. Not assessed. Our control request was challenged, so there is no clean baseline to compare against.

Machine-readable surface8 / 8

  • robots.txt published. robots.txt is present and parseable.
  • Sitemap declared in robots.txt. robots.txt points crawlers at a sitemap.
  • llms.txt published. Not assessed. /llms.txt could not be fetched cleanly past the bot challenge.
  • agents.md published. Not assessed. /agents.md could not be fetched cleanly past the bot challenge.

Content structurenot assessed

  • Organization schema. Not assessed. Our control request was challenged by a bot wall.
  • WebSite schema. Not assessed. Our control request was challenged by a bot wall.
  • Additional structured data. Not assessed. Our control request was challenged by a bot wall.
  • Readable without JavaScript. Not assessed. Our control request was challenged by a bot wall.
  • Single top-level heading. Not assessed. Our control request was challenged by a bot wall.
  • Semantic landmarks. Not assessed. Our control request was challenged by a bot wall.

Crawler policy

Read from acm.org/robots.txt. A crawler is listed as blocked when the rules deny it the site root. This operator names no AI crawler explicitly.

AI crawler access policy for acm.org
CrawlerOperatorTierNamedStatus
GPTBotOpenAI1noAllowed
OAI-SearchBotOpenAI1noAllowed
ChatGPT-UserOpenAI1noAllowed
ClaudeBotAnthropic1noAllowed
Claude-UserAnthropic1noAllowed
Claude-SearchBotAnthropic1noAllowed
PerplexityBotPerplexity1noAllowed
Perplexity-UserPerplexity1noAllowed
Google-ExtendedGoogle1noAllowed
Applebot-ExtendedApple1noAllowed
meta-externalagentMeta1noAllowed
CCBotCommon Crawl2noAllowed
AmazonbotAmazon2noAllowed
BytespiderByteDance2noAllowed
cohere-aiCohere2noAllowed
MistralAI-UserMistral2noAllowed
YouBotYou.com2noAllowed
DuckAssistBotDuckDuckGo2noAllowed
kagi-fetcherKagi2noAllowed
DiffbotDiffbot2noAllowed
Google-NotebookLMGoogle2noAllowed
TavilyBotTavily2noAllowed
FirecrawlAgentFirecrawl2noAllowed

Show this score

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CrawlIndex badge for acm.org, score 100
<a href="https://crawlindex.org/site/acm.org"><img src="https://crawlindex.org/badge/acm.org.svg" alt="CrawlIndex agent readiness score for acm.org" width="196" height="28"></a>

This measurement as JSON

Using these figures

Free to reuse in research, journalism or a product under CC BY 4.0, with credit to Fidget Labs BV. Quote the measurement date so the claim stays checkable as the index moves.

CrawlIndex by Fidget Labs BV. "acm.org agent readiness." https://crawlindex.org (measured 2026-08-09). Licensed CC BY 4.0.