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Report . November 2026

The state of AI crawler access, November 2026

Drawn from 6 daily crawls of up to 3,704 Tranco-ranked domains, of which 3,642 could be measured.

Month in progress. These figures move with every nightly crawl until November 2026 ends, at which point the report is written to a permanent file and stops changing. Quote it with the measurement date attached, or wait for the seal.

Research and data by Fidget Labs BV, Breda, Netherlands. Published as CrawlIndex and free to reuse under CC BY 4.0 with attribution.

17.6%
Block at least one answer-surface crawler
642 sites
4.3%
Block every answer-surface crawler
156 sites
15.0%
Publish an llms.txt
547 sites
64
Mean readiness score
Out of 100

What moved

Between 2026-11-01 and 2026-11-07, the number of measured sites blocking at least one answer-surface AI crawler fell by 4 sites. Sites publishing an llms.txt rose by 12 sites, and sites publishing an agents.md rose by 3 sites.

The mean readiness score across scored sites fell 0.2 points to 64.04.

9 sites answered an agent with HTTP 402 Payment Required. That is a pay-per-crawl gateway rather than a block: access is being metered and sold rather than refused.

Sites that could not be measured are excluded rather than counted as failures, so these totals are over the 3,642 domains actually observed. Method: /methodology. Coverage and its limits: /coverage.

Across the month

Blocking an answer-surface crawler646 to 642 over 6 crawls
Publishing llms.txt535 to 547 over 6 crawls
Mean readiness score64.24 to 64.04 over 6 crawls

Who set the policy

Blocking rate grouped by edge network. Sites behind fastly blocked at 24.8% against 2.5% behind google, which is a far wider spread than anything explained by what the sites themselves publish.

Blocking rate by edge network
Edge networkSitesBlocking AIProportion blockingMean score
Cloudflare1,130180 (15.9%)69.7
Amazon CloudFront42182 (19.5%)64.8
Akamai27842 (15.1%)67.4
Fastly21453 (24.8%)63.9
Google Cloud / GFE1634 (2.5%)58
Vercel582 (3.4%)75.5
Varnish338 (24.2%)62.9
Alibaba Cloud CDN322 (6.3%)64.8
Azure Front Door312 (6.5%)60.1

By publishing platform

Blocking rate by publishing platform
PlatformSitesBlocking AIProportion blockingMean score
Next.js31152 (16.7%)66.5
WordPress30751 (16.6%)70.3
Adobe Experience Manager1379 (6.6%)64.5
Drupal1095 (4.6%)64.1
HubSpot CMS824 (4.9%)72.7
Contentful593 (5.1%)68
Nuxt511 (2.0%)65.5
Sanity313 (9.7%)76.5

Blocking by crawler

AI crawlers by number of sites blocking them in November 2026
CrawlerOperatorBlocked byShareOver period
CCBotCommon Crawl56315.5%-5
BytespiderByteDance54915.1%no change
GPTBotOpenAI53114.6%-5
ClaudeBotAnthropic50914.0%-5
meta-externalagentMeta48413.3%-2
DiffbotDiffbot46112.7%-3
Google-ExtendedGoogle46012.6%-5
Applebot-ExtendedApple44812.3%-2
cohere-aiCohere44712.3%-2
AmazonbotAmazon43712.0%-2
PerplexityBotPerplexity3499.6%-13
YouBotYou.com3299.0%-3
ChatGPT-UserOpenAI2998.2%-7
Perplexity-UserPerplexity2747.5%no change
Claude-UserAnthropic2727.5%+2
DuckAssistBotDuckDuckGo2707.4%+2
MistralAI-UserMistral2617.2%+1
Claude-SearchBotAnthropic2607.1%+3
OAI-SearchBotOpenAI2496.8%-5
FirecrawlAgentFirecrawl2186.0%+2
TavilyBotTavily1965.4%+2
Google-NotebookLMGoogle1945.3%+4
kagi-fetcherKagi1624.4%+1

Policy changes this month

Where the index stood

The top and bottom of the leaderboard as it stands right now.

Most agent-ready

Least agent-ready

Citing this report

Free to quote and republish under CC BY 4.0. Credit Fidget Labs BV and include the measurement date so the claim stays checkable as the index moves.

CrawlIndex by Fidget Labs BV. "The state of AI crawler access, November 2026." https://crawlindex.org (measured 2026-11-07). Licensed CC BY 4.0.

Download the underlying dataset