Weekly report · 2006-W21

The state of AI crawling

Measured on 30,406 reachable domains for the week ending 2006-05-28. 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.

← 2006-W20 · 2006-W22 →

30,406

domains measured

block an answer engine

20%

refuse AI agents at the edge

14%

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	7.1%	2,155 of 30,404	new
CCBot	Common Crawl Foundation	archive	6.7%	2,044 of 30,404	new
Bytespider	ByteDance	training	6.5%	1,968 of 30,404	new
ClaudeBot	Anthropic	training	5.8%	1,750 of 30,404	new
Meta-ExternalAgent	Meta	training	4.7%	1,422 of 30,404	new
Amazonbot	Amazon	training	4.6%	1,411 of 30,404	new
Google-Extended	Google	training	4.6%	1,398 of 30,404	new
Applebot-Extended	Apple	training	4.6%	1,389 of 30,404	new
anthropic-ai	Anthropic	training	4.4%	1,333 of 30,404	new
omgilibot	Webz.io	training	4.3%	1,317 of 30,404	new
Diffbot	Diffbot	training	4.1%	1,238 of 30,404	new
cohere-ai	Cohere	live retrieval	4.1%	1,235 of 30,404	new
omgili	Webz.io	training	4.0%	1,204 of 30,404	new
SemrushBot-OCOB	Semrush	training	3.7%	1,130 of 30,404	new
ChatGPT-User	OpenAI	live retrieval	3.5%	1,060 of 30,404	new
PerplexityBot	Perplexity	answer index	3.5%	1,059 of 30,404	new
FacebookBot	Meta	training	3.2%	976 of 30,404	new
YouBot	You.com	answer index	3.0%	907 of 30,404	new
ImagesiftBot	ImageSift (Hive)	training	2.8%	842 of 30,404	new
Timpibot	Timpi	training	2.7%	833 of 30,404	new
Scrapy	Zyte (open-source framework)	training	2.4%	734 of 30,404	new
AI2Bot	Allen Institute for AI	training	2.3%	704 of 30,404	new
OAI-SearchBot	OpenAI	answer index	2.1%	646 of 30,404	new
cohere-training-data-crawler	Cohere	training	2.0%	620 of 30,404	new
Meta-ExternalFetcher	Meta	live retrieval	1.7%	528 of 30,404	new
DuckAssistBot	DuckDuckGo	live retrieval	1.7%	526 of 30,404	new
PanguBot	Huawei	training	1.7%	519 of 30,404	new
Claude-User	Anthropic	live retrieval	1.7%	503 of 30,404	new
Claude-SearchBot	Anthropic	answer index	1.6%	486 of 30,404	new
Perplexity-User	Perplexity	live retrieval	1.6%	478 of 30,404	new
MistralAI-User	Mistral AI	live retrieval	1.5%	464 of 30,404	new
Kangaroo Bot	Kangaroo LLM	training	1.5%	455 of 30,404	new
Google-CloudVertexBot	Google	live retrieval	1.4%	430 of 30,404	new
GoogleOther	Google	training	1.3%	400 of 30,404	new
Meta-WebIndexer	Meta	answer index	1.2%	362 of 30,404	new
Applebot	Apple	answer index	1.1%	335 of 30,404	new
TikTokSpider	ByteDance	live retrieval	0.8%	258 of 30,404	new
Amzn-SearchBot	Amazon	answer index	0.8%	241 of 30,404	new
Amzn-User	Amazon	live retrieval	0.6%	178 of 30,404	new
MistralAI-Training	Mistral AI	training	0.5%	161 of 30,404	new
MistralAI-Index	Mistral AI	answer index	0.3%	92 of 30,404	new
facebookexternalhit	Meta	live retrieval	0.2%	56 of 30,404	new
Bingbot	Microsoft	answer index	0.1%	38 of 30,404	new
Googlebot-News	Google	answer index	0.1%	37 of 30,404	new
Meta-ExternalAds	Meta	training	0.1%	21 of 30,404	new
msnbot	Microsoft	answer index	0.1%	20 of 30,404	new
Googlebot	Google	answer index	0.1%	16 of 30,404	new
OAI-AdsBot	OpenAI	live retrieval	0.0%	11 of 30,404	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, 2006-W21", 2006-05-28. https://crawlcensus.com/report/2006-W21

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