Does t-online.de block AI crawlers?
Blocks AI training and AI answers
t-online.de blocks both AI training crawlers and AI answer crawlers in its robots.txt.
Checked from t-online.de/robots.txt. Robots rules change; the live file is the source of truth.
- AI crawlers blocked
- 7 of 12
- AI bots named in robots.txt
- 8
- llms.txt
- Not found
- Popularity
- Tranco top 500 (#214)
Can AI assistants cite t-online.de?
- ChatGPT search: its search crawlers may read the site
- Claude: its search crawlers may read the site
- Perplexity: its search crawler is blocked
t-online.de opts out of AI training by OpenAI, Anthropic, Apple, Common Crawl, ByteDance, Meta. Training crawlers and answer crawlers are separate: blocking training doesn't by itself remove a site from AI answers.
AI crawler access, bot by bot
| Crawler | Used for | Status on t-online.de |
|---|---|---|
| GPTBotOpenAI | AI training | Blocked |
| OAI-SearchBotOpenAI | AI answers | Some paths restricted |
| ChatGPT-UserOpenAI | AI answers | Some paths restricted |
| ClaudeBotAnthropic | AI training | Blocked |
| Claude-SearchBotAnthropic | AI answers | Some paths restricted |
| Claude-UserAnthropic | AI answers | Some paths restricted |
| PerplexityBotPerplexity | AI answers | Blocked |
| Google-ExtendedGoogle | AI training | Some paths restricted |
| Applebot-ExtendedApple | AI training | Blocked |
| CCBotCommon Crawl | AI training | Blocked |
| BytespiderByteDance | AI training | Blocked |
| Meta-ExternalAgentMeta | AI training | Blocked |
How t-online.de compares
- 19% of the 1,278 popular sites we checked block GPTBot; t-online.de is one of them.
- 18% of the 1,278 popular sites we checked block ClaudeBot; t-online.de is one of them.
- 14% of the 1,278 popular sites we checked block PerplexityBot; t-online.de is one of them.
- Among 181 sites of similar popularity, 34% block at least one AI crawler.
The robots.txt rules that apply to AI crawlers
User-agent: * Disallow: /native/ Disallow: /auth/ Disallow: /?artid Disallow: /preisvergleich/ Disallow: /spiele/weihnachtsspiele/ Disallow: /studiopreview_ Disallow: /vid_1/ Disallow: /,ei= Disallow: /,linkId= Disallow: /,pt=pictureEnlarge Disallow: /,pt=print Disallow: /,pt=self Disallow: /,tid=print Disallow: /,vv=P5 Disallow: /,vv=enlarge Disallow: */tid_external_content_proxy/ Disallow: /-/id_62530634/tid_tsr_iframe_loginbox/index Disallow: /-/id_62530634/tid_tsr_iframe_loginbox_buzz/index Disallow: /gtm.js Disallow: /metatag/ Disallow: /ki-ratgeber/ Disallow: /api/greenplayer/ Disallow: /api/search/zero-input User-agent: GPTBot Disallow: / Allow: /finanzen/versichern-und-vorsorgen/ User-agent: PerplexityBot Disallow: / Allow: /finanzen/versichern-und-vorsorgen/ User-agent: ClaudeBot Disallow: / Allow: /finanzen/versichern-und-vorsorgen/ User-agent: Applebot-Extended User-agent: Bytespider User-agent: CCBot User-agent: Meta-ExternalAgent User-agent: meta-externalagent Disallow: / Allow: /finanzen/versichern-und-vorsorgen/ User-agent: Google-Extended Disallow: /native/ Disallow: /auth/ Disallow: /?artid Disallow: /preisvergleich/ Disallow: /spiele/weihnachtsspiele/ Disallow: /studiopreview_ Disallow: /vid_1/ Disallow: /,ei= Disallow: /,linkId= Disallow: /,pt=pictureEnlarge Disallow: /,pt=print Disallow: /,pt=self Disallow: /,tid=print Disallow: /,vv=P5 Disallow: /,vv=enlarge Disallow: */tid_external_content_proxy/ Disallow: /-/id_62530634/tid_tsr_iframe_loginbox/index Disallow: /-/id_62530634/tid_tsr_iframe_loginbox_buzz/index Disallow: /gtm.js Disallow: /metatag/ Disallow: /ki-ratgeber/ Disallow: /api/greenplayer/ Disallow: /api/search/zero-input Allow: /
Excerpt: only groups for all user-agents (*) or named AI crawlers, up to 40 rules per group.
Sites with a similar AI policy
Does t-online.de block GPTBot?
Yes. As of Oct 2, 2026, t-online.de's robots.txt disallows GPTBot, OpenAI's training crawler.
Can ChatGPT search show results from t-online.de?
Its robots.txt doesn't block OAI-SearchBot or ChatGPT-User, so ChatGPT's search crawlers may read it. Whether pages are actually shown depends on ChatGPT.
Does t-online.de have an llms.txt file?
We didn't find a valid llms.txt at t-online.de/llms.txt when we checked.
Data: t-online.de's public robots.txt and llms.txt, fetched by AskableHQ. Popularity rank from the Tranco list (ID Y83YG). Methodology.