Weekly report · 2001-W38

The state of AI crawling

Measured on 30,004 reachable domains for the week ending 2001-09-23. Every figure is the result of an automated audit run the same way on every domain: read robots.txt, resolve the rules for 48 tracked agents, then send live requests as four of them.

← 2001-W37 · 2001-W39 →

30,004

domains measured

block an answer engine

19%

refuse AI agents at the edge

15%

publish an llms.txt

Block rate by crawler with change on the previous week

Crawler	Operator	Content used for	Block rate	Sites	Week on week
GPTBot	OpenAI	training	9.5%	2,837 of 30,002	new
CCBot	Common Crawl Foundation	archive	9.2%	2,774 of 30,002	new
Bytespider	ByteDance	training	9.0%	2,709 of 30,002	new
ClaudeBot	Anthropic	training	8.2%	2,470 of 30,002	new
Meta-ExternalAgent	Meta	training	7.4%	2,230 of 30,002	new
Amazonbot	Amazon	training	7.3%	2,191 of 30,002	new
Applebot-Extended	Apple	training	7.3%	2,178 of 30,002	new
Google-Extended	Google	training	7.2%	2,163 of 30,002	new
anthropic-ai	Anthropic	training	7.0%	2,086 of 30,002	new
omgilibot	Webz.io	training	6.9%	2,063 of 30,002	new
Diffbot	Diffbot	training	6.7%	2,018 of 30,002	new
cohere-ai	Cohere	live retrieval	6.7%	2,011 of 30,002	new
omgili	Webz.io	training	6.5%	1,953 of 30,002	new
Google-CloudVertexBot	Google	live retrieval	4.2%	1,246 of 30,002	new
GoogleOther	Google	training	4.0%	1,206 of 30,002	new
SemrushBot-OCOB	Semrush	training	3.5%	1,055 of 30,002	new
PerplexityBot	Perplexity	answer index	3.4%	1,019 of 30,002	new
MistralAI-Training	Mistral AI	training	3.4%	1,012 of 30,002	new
ChatGPT-User	OpenAI	live retrieval	3.3%	990 of 30,002	new
FacebookBot	Meta	training	3.1%	927 of 30,002	new
YouBot	You.com	answer index	3.0%	887 of 30,002	new
Timpibot	Timpi	training	2.7%	820 of 30,002	new
ImagesiftBot	ImageSift (Hive)	training	2.7%	817 of 30,002	new
Scrapy	Zyte (open-source framework)	training	2.4%	714 of 30,002	new
AI2Bot	Allen Institute for AI	training	2.3%	699 of 30,002	new
cohere-training-data-crawler	Cohere	training	2.1%	617 of 30,002	new
OAI-SearchBot	OpenAI	answer index	2.1%	616 of 30,002	new
Meta-ExternalFetcher	Meta	live retrieval	1.8%	553 of 30,002	new
PanguBot	Huawei	training	1.7%	507 of 30,002	new
DuckAssistBot	DuckDuckGo	live retrieval	1.7%	501 of 30,002	new
Claude-User	Anthropic	live retrieval	1.7%	500 of 30,002	new
Perplexity-User	Perplexity	live retrieval	1.6%	478 of 30,002	new
Claude-SearchBot	Anthropic	answer index	1.5%	465 of 30,002	new
MistralAI-User	Mistral AI	live retrieval	1.5%	460 of 30,002	new
Kangaroo Bot	Kangaroo LLM	training	1.5%	440 of 30,002	new
Meta-WebIndexer	Meta	answer index	1.3%	394 of 30,002	new
Applebot	Apple	answer index	1.2%	359 of 30,002	new
Amzn-SearchBot	Amazon	answer index	0.9%	258 of 30,002	new
TikTokSpider	ByteDance	live retrieval	0.8%	250 of 30,002	new
Amzn-User	Amazon	live retrieval	0.7%	206 of 30,002	new
MistralAI-Index	Mistral AI	answer index	0.4%	111 of 30,002	new
facebookexternalhit	Meta	live retrieval	0.2%	57 of 30,002	new
Googlebot-News	Google	answer index	0.1%	39 of 30,002	new
Meta-ExternalAds	Meta	training	0.1%	37 of 30,002	new
Bingbot	Microsoft	answer index	0.1%	36 of 30,002	new
Googlebot	Google	answer index	0.1%	19 of 30,002	new
msnbot	Microsoft	answer index	0.1%	19 of 30,002	new
OAI-AdsBot	OpenAI	live retrieval	0.0%	14 of 30,002	new

Trend share of measured sites

Where the blocking is share blocking an answer engine, by top-level domain

Only TLDs with at least 40 measured domains are shown, and each bar carries its sample size. A TLD is a weak proxy for jurisdiction. Full segmentation.

Changes recorded this week 0 total

No crawler policy changes were recorded in this week.

Full change log · RSS

Cite this CC BY 4.0

The figures on this page are frozen to the week shown and will not be edited after publication. Corrections are appended, not overwritten.

Crawl Census, "The state of AI crawling, 2001-W38", 2001-09-23. https://crawlcensus.com/report/2001-W38

Machine-readable: census totals, full corpus, crawler registry. Method: methodology.