Does lichess.org block AI crawlers?
Open to AI crawlers
lichess.org doesn't block any of the major AI crawlers we track in its robots.txt.
Checked from lichess.org/robots.txt. Robots rules change; the live file is the source of truth.
- AI crawlers blocked
- 0 of 12
- AI bots named in robots.txt
- 0
- llms.txt
- Not found
- Popularity
- Tranco top 2,000 (#1,217)
Can AI assistants cite lichess.org?
- ChatGPT search: its search crawlers may read the site
- Claude: its search crawlers may read the site
- Perplexity: its search crawlers may read the site
lichess.org doesn't opt out of AI model training through robots.txt. 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 lichess.org |
|---|---|---|
| GPTBotOpenAI | AI training | Some paths restricted |
| OAI-SearchBotOpenAI | AI answers | Some paths restricted |
| ChatGPT-UserOpenAI | AI answers | Some paths restricted |
| ClaudeBotAnthropic | AI training | Some paths restricted |
| Claude-SearchBotAnthropic | AI answers | Some paths restricted |
| Claude-UserAnthropic | AI answers | Some paths restricted |
| PerplexityBotPerplexity | AI answers | Some paths restricted |
| Google-ExtendedGoogle | AI training | Some paths restricted |
| Applebot-ExtendedApple | AI training | Some paths restricted |
| CCBotCommon Crawl | AI training | Some paths restricted |
| BytespiderByteDance | AI training | Some paths restricted |
| Meta-ExternalAgentMeta | AI training | Some paths restricted |
How lichess.org compares
- 19% of the 1,278 popular sites we checked block GPTBot; lichess.org does not.
- 18% of the 1,278 popular sites we checked block ClaudeBot; lichess.org does not.
- 14% of the 1,278 popular sites we checked block PerplexityBot; lichess.org does not.
- Among 200 sites of similar popularity, 30% block at least one AI crawler.
The robots.txt rules that apply to AI crawlers
User-agent: * Allow: / Disallow: /game/export/ Disallow: /games/export/ Disallow: /api/ Disallow: /opening/config/ Disallow: /study/search Disallow: /study/embed/ Disallow: /embed/ Disallow: /video?* Disallow: /training/of-player Allow: /game/export/gif/thumbnail/
Excerpt: only groups for all user-agents (*) or named AI crawlers, up to 40 rules per group.
Sites with a similar AI policy
Does lichess.org block GPTBot?
No. As of Oct 2, 2026, lichess.org's robots.txt doesn't block GPTBot, though some paths are restricted for all crawlers.
Can ChatGPT search show results from lichess.org?
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 lichess.org have an llms.txt file?
We didn't find a valid llms.txt at lichess.org/llms.txt when we checked.
Data: lichess.org's public robots.txt and llms.txt, fetched by AskableHQ. Popularity rank from the Tranco list (ID Y83YG). Methodology.