TidyToolsAI Crawler Index · data as of · updated daily

AI Crawler Index · country

Do websites in Switzerland (.ch) block AI crawlers?

As of 2026-10-02, 16.7% of the 36 websites in Switzerland (.ch) whose robots.txt we could read block GPTBot, 16.7% block ClaudeBot and 8.3% block PerplexityBot (all 8,366 sites: 12%, 11%, 8.3%). 1 of them (2.8%) serve an llms.txt (all sites: 15.2%).

16.7%
block GPTBot (all sites 12%)
16.7%
block ClaudeBot (all sites 11%)
2.8%
serve an llms.txt (all sites 15.2%)
36
of 39 sites with a readable robots.txt

Block rate by crawler: .ch (Switzerland) vs all sites

CrawlerOperator.ch (Switzerland)All sitesDifference
AmazonbotAmazon19.4%9.2%+10.2 pp
Applebot-ExtendedApple16.7%9.6%+7.1 pp
BytespiderByteDance16.7%12.2%+4.5 pp
CCBotCommon Crawl16.7%12.7%+4 pp
ClaudeBotAnthropic16.7%11%+5.7 pp
GPTBotOpenAI16.7%12%+4.7 pp
Meta-ExternalAgentMeta16.7%9.5%+7.2 pp
Google-ExtendedGoogle13.9%9.5%+4.4 pp
meta-externalfetcherMeta11.1%6%+5.1 pp
ChatGPT-UserOpenAI8.3%7.4%+0.9 pp
cohere-aiCohere8.3%9%-0.7 pp
Google-CloudVertexBotGoogle8.3%5.2%+3.1 pp
MistralAI-UserMistral8.3%5.3%+3 pp
OAI-SearchBotOpenAI8.3%5.7%+2.6 pp
PerplexityBotPerplexity8.3%8.3%0 pp
Perplexity-UserPerplexity5.6%5.7%-0.1 pp
ApplebotApple2.8%3.1%-0.3 pp
Claude-SearchBotAnthropic2.8%5.4%-2.6 pp
Claude-UserAnthropic2.8%5.5%-2.7 pp
DuckAssistBotDuckDuckGo2.8%5.7%-2.9 pp
Google-AgentGoogle2.8%3.2%-0.4 pp
Amzn-SearchBotAmazon0%4.1%-4.1 pp
Amzn-UserAmazon0%3.9%-3.9 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
OAI-AdsBotOpenAI0%3%-3 pp

Who blocks what, by name: GPTBot, ClaudeBot, PerplexityBot, Google-Extended, CCBot, Bytespider, Applebot-Extended, OAI-SearchBot.

Policy mix

PolicySitesShare
Open2359%
No robots.txt615.4%
Blocks some AI search410.3%
Unreadable37.7%
Blocks training only37.7%

Most restrictive .ch (Switzerland) sites

  1. unil.ch 18 of 29 blocked
  2. nzz.ch 15 of 29 blocked
  3. bluewin.ch 15 of 29 blocked
  4. tagesanzeiger.ch 12 of 29 blocked
  5. srf.ch 8 of 29 blocked
  6. rts.ch 8 of 29 blocked
  7. hosttech.ch 1 of 29 blocked

Sites with an llms.txt (1)

All 39 .ch (Switzerland) 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
572hostpoint.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
590admin.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
972threema.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
1352ethz.chNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
1455sbb.chUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
1525cern.chNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
1892ipcc.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
2208swisscom.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
2493srf.chBlocks training onlyblockedallowedallowedblockedallowedallowedblockedblocked–
276320min.chOpenpartialpartialallowedpartialallowedpartialpartialpartial–
2979blick.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3001epfl.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3132cyon.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3345nzz.chBlocks some AI searchblockedblockedblockedblockedallowedblockedblockedblocked–
3492uzh.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3683swissinfo.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
3983hosttech.chBlocks training onlyallowedallowedallowedallowedallowedallowedallowedallowed–
4309unige.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
4913protonmail.chNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
5694homegate.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
5728komikindo.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
6007xdate.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
6450unibe.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
6841tagesanzeiger.chBlocks some AI searchblockedpartialblockedblockedallowedpartialblockedblocked–
7621metanet.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
7772iec.chUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
8146kreativmedia.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
8167bluewin.chBlocks some AI searchblockedblockedblockedblockedallowedblockedallowedblocked–
8331search.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
8429watson.chOpenallowedallowedallowedallowedallowedallowedallowedallowedyes
8912rts.chBlocks training onlyblockedallowedallowedblockedallowedallowedblockedblocked–
8917unibas.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
9113webland.chNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
9187musta.chUnreadableunknownunknownunknownunknownunknownunknownunknownunknown–
9227tophost.chNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
9501switch.chNo robots.txtallowedallowedallowedallowedallowedallowedallowedallowed–
9538sunrise.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
9687post.chOpenallowedallowedallowedallowedallowedallowedallowedallowed–
9871unil.chBlocks some AI searchblockedblockedallowedblockedblockedblockedblockedblocked–

Categories on .ch (Switzerland)

FAQ

Do websites in Switzerland (.ch) block AI crawlers?
As of 2026-10-02, 16.7% of the 36 websites in Switzerland (.ch) whose robots.txt we could read block GPTBot, 16.7% block ClaudeBot and 8.3% block PerplexityBot (all 8,366 sites: 12%, 11%, 8.3%). 1 of them (2.8%) serve an llms.txt (all sites: 15.2%).
Which .ch (Switzerland) websites block the most AI crawlers?
unil.ch (18 of 29), nzz.ch (15 of 29), bluewin.ch (15 of 29), tagesanzeiger.ch (12 of 29), srf.ch (8 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. 39 .ch (Switzerland) sites are in the sample, 36 had a readable robots.txt (3 did not answer or returned an error page).

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