Weekly report · 2019-W17

The state of AI crawling

Measured on 30,515 reachable domains for the week ending 2019-04-28. 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.

← 2019-W16 · 2019-W18 →

30,515

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	11.4%	3,477 of 30,513	new
CCBot	Common Crawl Foundation	archive	11.2%	3,412 of 30,513	new
Bytespider	ByteDance	training	10.8%	3,281 of 30,513	new
ClaudeBot	Anthropic	training	10.0%	3,051 of 30,513	new
Google-Extended	Google	training	9.0%	2,751 of 30,513	new
Meta-ExternalAgent	Meta	training	9.0%	2,747 of 30,513	new
Amazonbot	Amazon	training	9.0%	2,742 of 30,513	new
Applebot-Extended	Apple	training	8.8%	2,678 of 30,513	new
anthropic-ai	Anthropic	training	4.2%	1,281 of 30,513	new
omgilibot	Webz.io	training	4.2%	1,274 of 30,513	new
Diffbot	Diffbot	training	3.9%	1,178 of 30,513	new
omgili	Webz.io	training	3.8%	1,157 of 30,513	new
cohere-ai	Cohere	live retrieval	3.8%	1,150 of 30,513	new
SemrushBot-OCOB	Semrush	training	3.7%	1,138 of 30,513	new
PerplexityBot	Perplexity	answer index	3.6%	1,110 of 30,513	new
ChatGPT-User	OpenAI	live retrieval	3.6%	1,101 of 30,513	new
FacebookBot	Meta	training	3.3%	994 of 30,513	new
YouBot	You.com	answer index	2.9%	870 of 30,513	new
ImagesiftBot	ImageSift (Hive)	training	2.8%	840 of 30,513	new
Timpibot	Timpi	training	2.7%	833 of 30,513	new
Scrapy	Zyte (open-source framework)	training	2.3%	711 of 30,513	new
OAI-SearchBot	OpenAI	answer index	2.3%	688 of 30,513	new
AI2Bot	Allen Institute for AI	training	2.2%	684 of 30,513	new
cohere-training-data-crawler	Cohere	training	1.9%	595 of 30,513	new
DuckAssistBot	DuckDuckGo	live retrieval	1.7%	531 of 30,513	new
Meta-ExternalFetcher	Meta	live retrieval	1.7%	529 of 30,513	new
PanguBot	Huawei	training	1.7%	517 of 30,513	new
Claude-SearchBot	Anthropic	answer index	1.6%	482 of 30,513	new
Claude-User	Anthropic	live retrieval	1.6%	475 of 30,513	new
Kangaroo Bot	Kangaroo LLM	training	1.5%	459 of 30,513	new
Perplexity-User	Perplexity	live retrieval	1.5%	448 of 30,513	new
MistralAI-User	Mistral AI	live retrieval	1.4%	427 of 30,513	new
Applebot	Apple	answer index	1.2%	356 of 30,513	new
Google-CloudVertexBot	Google	live retrieval	1.2%	353 of 30,513	new
Meta-WebIndexer	Meta	answer index	1.1%	350 of 30,513	new
GoogleOther	Google	training	1.1%	334 of 30,513	new
TikTokSpider	ByteDance	live retrieval	0.8%	253 of 30,513	new
Amzn-SearchBot	Amazon	answer index	0.7%	220 of 30,513	new
Amzn-User	Amazon	live retrieval	0.4%	130 of 30,513	new
MistralAI-Index	Mistral AI	answer index	0.2%	67 of 30,513	new
facebookexternalhit	Meta	live retrieval	0.2%	57 of 30,513	new
MistralAI-Training	Mistral AI	training	0.2%	55 of 30,513	new
Bingbot	Microsoft	answer index	0.1%	40 of 30,513	new
Googlebot-News	Google	answer index	0.1%	38 of 30,513	new
msnbot	Microsoft	answer index	0.1%	25 of 30,513	new
Meta-ExternalAds	Meta	training	0.1%	20 of 30,513	new
Googlebot	Google	answer index	0.1%	16 of 30,513	new
OAI-AdsBot	OpenAI	live retrieval	0.0%	2 of 30,513	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, 2019-W17", 2019-04-28. https://crawlcensus.com/report/2019-W17

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