Does base.org block AI crawlers?
Open to AI crawlers
base.org doesn't block any of the major AI crawlers we track in its robots.txt.
Checked from base.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
- Published
- Popularity
- Tranco top 500 (#184)
Can AI assistants cite base.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
base.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 base.org |
|---|---|---|
| GPTBotOpenAI | AI training | Allowed |
| OAI-SearchBotOpenAI | AI answers | Allowed |
| ChatGPT-UserOpenAI | AI answers | Allowed |
| ClaudeBotAnthropic | AI training | Allowed |
| Claude-SearchBotAnthropic | AI answers | Allowed |
| Claude-UserAnthropic | AI answers | Allowed |
| PerplexityBotPerplexity | AI answers | Allowed |
| Google-ExtendedGoogle | AI training | Allowed |
| Applebot-ExtendedApple | AI training | Allowed |
| CCBotCommon Crawl | AI training | Allowed |
| BytespiderByteDance | AI training | Allowed |
| Meta-ExternalAgentMeta | AI training | Allowed |
How base.org compares
- 19% of the 1,278 popular sites we checked block GPTBot; base.org does not.
- 18% of the 1,278 popular sites we checked block ClaudeBot; base.org does not.
- 14% of the 1,278 popular sites we checked block PerplexityBot; base.org does not.
- Among 166 sites of similar popularity, 36% block at least one AI crawler.
The robots.txt rules that apply to AI crawlers
User-agent: * 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 base.org block GPTBot?
No. As of Oct 2, 2026, base.org's robots.txt doesn't block GPTBot.
Can ChatGPT search show results from base.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 base.org have an llms.txt file?
Yes — base.org/llms.txt was found when we checked.
Data: base.org's public robots.txt and llms.txt, fetched by AskableHQ. Popularity rank from the Tranco list (ID Y83YG). Methodology.