Weekly report · 2015-W51

The state of AI crawling

Measured on 30,372 reachable domains for the week ending 2015-12-20. 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.

← 2015-W50 · 2015-W52 →

30,372

domains measured

block an answer engine

19%

refuse AI agents at the edge

13%

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	9.8%	2,977 of 30,373	new
CCBot	Common Crawl Foundation	archive	9.6%	2,922 of 30,373	new
Bytespider	ByteDance	training	9.2%	2,784 of 30,373	new
ClaudeBot	Anthropic	training	8.4%	2,550 of 30,373	new
Meta-ExternalAgent	Meta	training	7.5%	2,278 of 30,373	new
Amazonbot	Amazon	training	7.4%	2,256 of 30,373	new
Google-Extended	Google	training	7.4%	2,246 of 30,373	new
Applebot-Extended	Apple	training	7.3%	2,208 of 30,373	new
anthropic-ai	Anthropic	training	4.1%	1,254 of 30,373	new
omgilibot	Webz.io	training	4.1%	1,234 of 30,373	new
cohere-ai	Cohere	live retrieval	3.8%	1,167 of 30,373	new
Diffbot	Diffbot	training	3.8%	1,144 of 30,373	new
SemrushBot-OCOB	Semrush	training	3.7%	1,128 of 30,373	new
omgili	Webz.io	training	3.7%	1,119 of 30,373	new
PerplexityBot	Perplexity	answer index	3.5%	1,067 of 30,373	new
ChatGPT-User	OpenAI	live retrieval	3.5%	1,061 of 30,373	new
FacebookBot	Meta	training	3.2%	958 of 30,373	new
YouBot	You.com	answer index	2.9%	878 of 30,373	new
ImagesiftBot	ImageSift (Hive)	training	2.7%	826 of 30,373	new
Timpibot	Timpi	training	2.7%	818 of 30,373	new
Scrapy	Zyte (open-source framework)	training	2.4%	729 of 30,373	new
AI2Bot	Allen Institute for AI	training	2.2%	672 of 30,373	new
OAI-SearchBot	OpenAI	answer index	2.2%	667 of 30,373	new
cohere-training-data-crawler	Cohere	training	2.0%	599 of 30,373	new
Meta-ExternalFetcher	Meta	live retrieval	1.8%	532 of 30,373	new
DuckAssistBot	DuckDuckGo	live retrieval	1.7%	514 of 30,373	new
PanguBot	Huawei	training	1.6%	501 of 30,373	new
Claude-SearchBot	Anthropic	answer index	1.6%	472 of 30,373	new
Claude-User	Anthropic	live retrieval	1.5%	469 of 30,373	new
Kangaroo Bot	Kangaroo LLM	training	1.5%	450 of 30,373	new
Perplexity-User	Perplexity	live retrieval	1.4%	439 of 30,373	new
MistralAI-User	Mistral AI	live retrieval	1.4%	422 of 30,373	new
Google-CloudVertexBot	Google	live retrieval	1.2%	361 of 30,373	new
Meta-WebIndexer	Meta	answer index	1.2%	353 of 30,373	new
GoogleOther	Google	training	1.1%	341 of 30,373	new
Applebot	Apple	answer index	1.1%	335 of 30,373	new
TikTokSpider	ByteDance	live retrieval	0.8%	255 of 30,373	new
Amzn-SearchBot	Amazon	answer index	0.7%	213 of 30,373	new
Amzn-User	Amazon	live retrieval	0.5%	137 of 30,373	new
MistralAI-Index	Mistral AI	answer index	0.2%	73 of 30,373	new
MistralAI-Training	Mistral AI	training	0.2%	66 of 30,373	new
facebookexternalhit	Meta	live retrieval	0.2%	59 of 30,373	new
Bingbot	Microsoft	answer index	0.1%	39 of 30,373	new
Googlebot-News	Google	answer index	0.1%	38 of 30,373	new
msnbot	Microsoft	answer index	0.1%	27 of 30,373	new
Meta-ExternalAds	Meta	training	0.1%	19 of 30,373	new
Googlebot	Google	answer index	0.1%	16 of 30,373	new
OAI-AdsBot	OpenAI	live retrieval	0.0%	5 of 30,373	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, 2015-W51", 2015-12-20. https://crawlcensus.com/report/2015-W51

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