Who blocks AI · #778 in the Majestic Million
Does notion.so block AI crawlers?
Yes. notion.so’s robots.txt blocks 1 of the 19 AI crawlers we track, including Amazonbot. Search engines such as Googlebot and Bingbot may crawl it.
GPTBotAllowedOAI-SearchBotAllowedClaudeBotAllowedPerplexityBotAllowedGoogle-ExtendedAllowedCCBotAllowed- robots.txt
- www.notion.so/robots.txt · 43 lines
- llms.txt
- found
- Checked
- 9 November 2026, as canaicrawl. We check again every week.
Every bot, and the line that decides
Search engines
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
Googlebot | Allowed | line 5 · Allow: / under User-agent: * | |
Bingbot | Microsoft | Allowed | line 5 · Allow: / under User-agent: * |
DuckDuckBot | DuckDuckGo | Allowed | line 5 · Allow: / under User-agent: * |
Applebot | Apple | Allowed | line 5 · Allow: / under User-agent: * |
PetalBot | Huawei | Allowed | line 5 · Allow: / under User-agent: * |
YandexBot | Yandex | Allowed | line 5 · Allow: / under User-agent: * |
Baiduspider | Baidu | Allowed | line 5 · Allow: / under User-agent: * |
AI search
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
OAI-SearchBot | OpenAI | Allowed | line 5 · Allow: / under User-agent: * |
PerplexityBot | Perplexity | Allowed | line 5 · Allow: / under User-agent: * |
Claude-SearchBot | Anthropic | Allowed | line 5 · Allow: / under User-agent: * |
DuckAssistBot | DuckDuckGo | Allowed | line 5 · Allow: / under User-agent: * |
Amazonbot | Amazon | Blocked | line 25 · Disallow: / under User-agent: Amazonbot |
YouBot | You.com | Allowed | line 5 · Allow: / under User-agent: * |
AI training
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
GPTBot | OpenAI | Allowed | line 5 · Allow: / under User-agent: * |
ClaudeBot | Anthropic | Allowed | line 5 · Allow: / under User-agent: * |
Google-Extended | Allowed | line 5 · Allow: / under User-agent: * | |
CCBot | Common Crawl | Allowed | line 5 · Allow: / under User-agent: * |
Applebot-Extended | Apple | Allowed | line 5 · Allow: / under User-agent: * |
GoogleOther | Allowed | line 5 · Allow: / under User-agent: * | |
Meta-ExternalAgent | Meta | Allowed | line 5 · Allow: / under User-agent: * |
Bytespider | ByteDance | Allowed | line 5 · Allow: / under User-agent: * |
User-triggered fetchers
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
ChatGPT-User | OpenAI | Allowed | line 5 · Allow: / under User-agent: * |
Claude-User | Anthropic | Allowed | line 5 · Allow: / under User-agent: * |
Perplexity-User | Perplexity | Allowed | line 5 · Allow: / under User-agent: * |
MistralAI-User | Mistral | Allowed | line 5 · Allow: / under User-agent: * |
Meta-ExternalFetcher | Meta | Allowed | line 5 · Allow: / under User-agent: * |
SEO tools
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
AhrefsBot | Ahrefs | Blocked | line 22 · Disallow: / under User-agent: AhrefsBot |
SemrushBot | Semrush | Blocked | line 28 · Disallow: / under User-agent: SemrushBot |
MJ12bot | Majestic | Allowed | line 5 · Allow: / under User-agent: * |
DotBot | Moz | Blocked | line 31 · Disallow: / under User-agent: dotbot |
View www.notion.so/robots.txt · 43 lines
What do the bots actually get?
This page reads robots.txt, which states what notion.so asks of crawlers. A firewall or CDN can still refuse a bot that robots.txt allows. The live check requests the page as each bot and shows the status it gets.
Run a live check on notion.so Test a path in the robots.txt tester
History
- 19 October 2026: first checked.
Questions
Does notion.so block GPTBot?
No. notion.so’s robots.txt lets GPTBot crawl the site. GPTBot is OpenAI’s crawler for training data; blocking it doesn’t affect ChatGPT search, which uses OAI-SearchBot. Checked 9 November 2026.
Does notion.so block ClaudeBot?
No. notion.so’s robots.txt lets ClaudeBot crawl the site. ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.
Does notion.so block Google-Extended?
No. notion.so’s robots.txt lets Google-Extended crawl the site. Google-Extended is the token that controls whether Google may use pages for Gemini training and grounding; it doesn’t affect Google Search. Checked 9 November 2026.
Does notion.so block PerplexityBot?
No. notion.so’s robots.txt lets PerplexityBot crawl the site. PerplexityBot is the crawler that indexes pages for Perplexity’s answers. Checked 9 November 2026.
Can ChatGPT search find notion.so?
Yes. notion.so’s robots.txt lets OAI-SearchBot crawl the site. OAI-SearchBot is the crawler behind ChatGPT search; blocking it keeps the site out of ChatGPT’s search answers. Checked 9 November 2026.