TidyToolsAI Crawler Index · data as of · updated daily

AI Crawler Index · country

Do websites in Czechia (.cz) block AI crawlers?

As of 2026-10-02, 3.2% of the 31 websites in Czechia (.cz) whose robots.txt we could read block GPTBot, 6.5% block ClaudeBot and 3.2% block PerplexityBot (all 8,366 sites: 12%, 11%, 8.3%). 2 of them (6.5%) serve an llms.txt (all sites: 15.2%).

3.2%
block GPTBot (all sites 12%)
6.5%
block ClaudeBot (all sites 11%)
6.5%
serve an llms.txt (all sites 15.2%)
31
of 37 sites with a readable robots.txt

Block rate by crawler: .cz (Czechia) vs all sites

CrawlerOperator.cz (Czechia)All sitesDifference
BytespiderByteDance9.7%12.2%-2.5 pp
CCBotCommon Crawl6.5%12.7%-6.2 pp
ClaudeBotAnthropic6.5%11%-4.5 pp
Meta-ExternalAgentMeta6.5%9.5%-3 pp
meta-externalfetcherMeta6.5%6%+0.5 pp
AmazonbotAmazon3.2%9.2%-6 pp
ApplebotApple3.2%3.1%+0.1 pp
cohere-aiCohere3.2%9%-5.8 pp
DuckAssistBotDuckDuckGo3.2%5.7%-2.5 pp
Google-ExtendedGoogle3.2%9.5%-6.3 pp
GPTBotOpenAI3.2%12%-8.8 pp
PerplexityBotPerplexity3.2%8.3%-5.1 pp
Amzn-SearchBotAmazon0%4.1%-4.1 pp
Amzn-UserAmazon0%3.9%-3.9 pp
Applebot-ExtendedApple0%9.6%-9.6 pp
ChatGPT-UserOpenAI0%7.4%-7.4 pp
Claude-SearchBotAnthropic0%5.4%-5.4 pp
Claude-UserAnthropic0%5.5%-5.5 pp
Google-AgentGoogle0%3.2%-3.2 pp
Google-CloudVertexBotGoogle0%5.2%-5.2 pp
Google-GeminiNotebookGoogle0%3%-3 pp
meta-externaladsMeta0%2.8%-2.8 pp
meta-webindexerMeta0%4.6%-4.6 pp
MistralAI-IndexMistral0%3.3%-3.3 pp
MistralAI-TrainingMistral0%3.2%-3.2 pp
MistralAI-UserMistral0%5.3%-5.3 pp
OAI-AdsBotOpenAI0%3%-3 pp
OAI-SearchBotOpenAI0%5.7%-5.7 pp
Perplexity-UserPerplexity0%5.7%-5.7 pp

Who blocks what, by name: Bytespider.

Policy mix

PolicySitesShare
Open2362.2%
Unreadable616.2%
No robots.txt38.1%
Blocks some AI search38.1%
Blocks training only25.4%

Most restrictive .cz (Czechia) sites

  1. idnes.cz 7 of 29 blocked
  2. livesport.cz 6 of 29 blocked
  3. csfd.cz 2 of 29 blocked
  4. windguru.cz 2 of 29 blocked
  5. blesk.cz 1 of 29 blocked

Sites with an llms.txt (2)

All 37 .cz (Czechia) sites

✕ blocked · ◐ partially blocked (some paths) · ✓ allowed · ? robots.txt unreadable. "#" is the position in our popularity-ordered sample.

#SitePolicyGPTBotOAI-SearchChatGPT-UserClaudeBotClaude-SearchPerplexityGoogle-Ext.CCBotllms.txt
322seznam.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
662novinky.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
1042cukrarnauandela.czNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
1503idnes.czBlocks some AI searchblockedallowedallowedblockedallowedblockedblockedallowed–
2786wedos.czOpenallowedallowedallowedallowedallowedallowedallowedallowedyes
2790cuni.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
2994forpsi.czNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
3342alza.czUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
3480muni.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3506centrum.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3698cra.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3911csfd.czBlocks training onlyallowedallowedallowedblockedallowedallowedallowedblocked–
4037blesk.czBlocks training onlyallowedallowedallowedallowedallowedallowedallowedallowed–
4134nova.czUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
4176seznamzpravy.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
4201windguru.czBlocks some AI searchallowedallowedallowedallowedallowedallowedallowedallowed–
4579cvut.czUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
4769bazos.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
4851super.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
4924livesport.czBlocks some AI searchallowedallowedallowedallowedallowedallowedallowedblocked–
5138allwyn.czUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
5435kupi.czUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
5472prehrajto.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
5509anikoto.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
5623idos.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
5851freevideo.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
6860thinline.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
7489master.czOpenallowedallowedallowedallowedallowedallowedallowedallowedyes
8106web4u.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
8643ceskatelevize.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
8862257.czNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
9017phoca.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
9059active24.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
9158heureka.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
9478regzone.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–
9494ignum.czUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
9703iprima.czOpenallowedallowedallowedallowedallowedallowedallowedallowed–

Categories on .cz (Czechia)

FAQ

Do websites in Czechia (.cz) block AI crawlers?
As of 2026-10-02, 3.2% of the 31 websites in Czechia (.cz) whose robots.txt we could read block GPTBot, 6.5% block ClaudeBot and 3.2% block PerplexityBot (all 8,366 sites: 12%, 11%, 8.3%). 2 of them (6.5%) serve an llms.txt (all sites: 15.2%).
Which .cz (Czechia) websites block the most AI crawlers?
idnes.cz (7 of 29), livesport.cz (6 of 29), csfd.cz (2 of 29), windguru.cz (2 of 29), blesk.cz (1 of 29). The full per-site status is on each site page.
How is this measured?
We fetch each site's robots.txt every day from one residential IP in Taiwan with an honest user agent, and apply the rules to 29 AI crawlers for the home page. 37 .cz (Czechia) sites are in the sample, 31 had a readable robots.txt (6 did not answer or returned an error page).

Other countries and suffixes

Compare all suffixes