Top-level domain segment

AI crawler access on .cz domains

10 of the 69 domains measured in this segment refuse a request from an identified AI user agent at the edge, 14% of the segment, against 7% whose robots.txt disallows an answer engine at the site root. The block that costs these sites citations is not the one written in the file. That answer-engine rate is level with the corpus rate of 7%, which is itself measured across 16,934 domains.

Mean AI access score across those 69 domains is 70.7 of 100, 9 of them publish an llms.txt (13%), and 27 publish structured data an answer engine can parse (39%).

domains measured

70.7

mean AI access score of 69

block an answer engine (5 of 69)

13%

publish llms.txt (9 of 69)

Block rate by crawler, inside this segment robots.txt at the site root

Crawler	Operator	Content used for	Block rate	Blocking	Measured
Bytespider	ByteDance	training	13.0%	9	69
AI2Bot	Allen Institute for AI	training	13.0%	9	69
GPTBot	OpenAI	training	11.6%	8	69
ClaudeBot	Anthropic	training	11.6%	8	69
CCBot	Common Crawl Foundation	archive	11.6%	8	69
Meta-ExternalAgent	Meta	training	10.1%	7	69
Google-Extended	Google	training	8.7%	6	69
Amazonbot	Amazon	training	8.7%	6	69
ImagesiftBot	ImageSift (Hive)	training	7.2%	5	69
Applebot-Extended	Apple	training	7.2%	5	69
YouBot	You.com	answer index	5.8%	4	69
omgilibot	Webz.io	training	5.8%	4	69
omgili	Webz.io	training	5.8%	4	69
FacebookBot	Meta	training	5.8%	4	69
Diffbot	Diffbot	training	5.8%	4	69
SemrushBot-OCOB	Semrush	training	4.3%	3	69
Meta-ExternalFetcher	Meta	live retrieval	4.3%	3	69
DuckAssistBot	DuckDuckGo	live retrieval	4.3%	3	69
cohere-ai	Cohere	live retrieval	4.3%	3	69
Timpibot	Timpi	training	2.9%	2	69
PerplexityBot	Perplexity	answer index	2.9%	2	69
Kangaroo Bot	Kangaroo LLM	training	2.9%	2	69
anthropic-ai	Anthropic	training	2.9%	2	69
OAI-SearchBot	OpenAI	answer index	1.4%	1	69
ChatGPT-User	OpenAI	live retrieval	1.4%	1	69
Applebot	Apple	answer index	1.4%	1	69
TikTokSpider	ByteDance	live retrieval	0.0%	0	69
Scrapy	Zyte (open-source framework)	training	0.0%	0	69
Perplexity-User	Perplexity	live retrieval	0.0%	0	69
PanguBot	Huawei	training	0.0%	0	69
OAI-AdsBot	OpenAI	live retrieval	0.0%	0	69
msnbot	Microsoft	answer index	0.0%	0	69
MistralAI-User	Mistral AI	live retrieval	0.0%	0	69
MistralAI-Training	Mistral AI	training	0.0%	0	69
MistralAI-Index	Mistral AI	answer index	0.0%	0	69
Meta-WebIndexer	Meta	answer index	0.0%	0	69
Meta-ExternalAds	Meta	training	0.0%	0	69
GoogleOther	Google	training	0.0%	0	69
Googlebot-News	Google	answer index	0.0%	0	69
Googlebot	Google	answer index	0.0%	0	69
Google-CloudVertexBot	Google	live retrieval	0.0%	0	69
facebookexternalhit	Meta	live retrieval	0.0%	0	69
cohere-training-data-crawler	Cohere	training	0.0%	0	69
Claude-User	Anthropic	live retrieval	0.0%	0	69
Claude-SearchBot	Anthropic	answer index	0.0%	0	69
Bingbot	Microsoft	answer index	0.0%	0	69
Amzn-User	Amazon	live retrieval	0.0%	0	69
Amzn-SearchBot	Amazon	answer index	0.0%	0	69

Block rate is the share of this segment's domains holding a policy record for that agent whose robots.txt disallows it at the site root, shown with its numerator and denominator. Denominators differ between agents because a record only exists once a domain has been measured for it. A domain serving no robots.txt counts as allowing everything, which is what the standard specifies.

Most accessible

	Domain	Score	llms.txt
1	gigaserver.cz	98	yes
2	pvideo.cz	92	yes
3	brnostavi.cz	91	no
4	o2.cz	90	yes
5	master.cz	89	yes
6	webglobe.cz	88	no
7	regzone.cz	88	no
8	nethost.cz	88	no
9	cra.cz	88	no
10	extra.cz	86	no
11	acrobits.cz	84	yes
12	vodafone.cz	84	no
13	webnode.cz	84	yes
14	aktualne.cz	83	no
15	lidl.cz	83	no

Highest AI access scores among the 69 domains measured in this segment.

Least accessible

	Domain	Score	Engines blocked	llms.txt
1	datart.cz	43	0	no
2	sdn.cz	44	0	no
3	allwyn.cz	47	0	no
4	freevideo.cz	49	0	no
5	mapy.cz	49	0	no
6	windguru.cz	52	1	no
7	csfd.cz	54	0	no
8	nic.cz	57	0	no
9	ceskatelevize.cz	57	0	no
10	thinline.cz	59	0	no
11	prehrajto.cz	60	0	no
12	idos.cz	62	0	no
13	anikoto.cz	62	0	no
14	livescore.cz	63	4	no
15	cvut.cz	63	0	no

Lowest AI access scores among the same 69 domains.

Compare with the rest of the grouping top-level domain segments

.com 8,497 domains · 8% block .org 927 domains · 5% block .net 749 domains · 6% block .ru 609 domains · 3% block .de 406 domains · 17% block .io 396 domains · 3% block .edu 279 domains · 3% block .jp 275 domains · 7% block .br 203 domains · 6% block .uk 202 domains · 16% block .in 182 domains · 3% block .fr 179 domains · 23% block

The largest 12 other segments in this grouping, ordered by size. The share beside each is that segment's own answer-engine block rate over its own count. Full table on the segments index.

What this segment does not tell you read this before citing it

A top-level domain is a weak proxy for jurisdiction. Most of them are open to any registrant anywhere, so a domain under a country-code registry may be operated from outside that country by a company no local law reaches. Read these rows as differences between registration communities and the publishing cultures inside them, not as differences between legal regimes.

Measure your own domain

The audit that produced every number on this page runs on any domain in about six seconds: robots.txt resolved for 48 agents, then live requests sent as four of them to see whether the edge agrees with the file.