Who blocks AI · #410 in the Majestic Million
Does coursera.org block AI crawlers?
Yes. coursera.org’s robots.txt blocks 1 of the 19 AI crawlers we track, including Meta-ExternalAgent. Search engines such as Googlebot and Bingbot may crawl it.
GPTBotPartly blockedOAI-SearchBotPartly blockedClaudeBotPartly blockedPerplexityBotPartly blockedGoogle-ExtendedPartly blockedCCBotPartly blocked- robots.txt
- www.coursera.org/robots.txt · 218 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 | no rule matches the home page | |
Bingbot | Microsoft | Allowed | no rule matches the home page |
DuckDuckBot | DuckDuckGo | Allowed | no rule matches the home page |
Applebot | Apple | Allowed | no rule matches the home page |
PetalBot | Huawei | Allowed | no rule matches the home page |
YandexBot | Yandex | Allowed | no rule matches the home page |
Baiduspider | Baidu | Allowed | no rule matches the home page |
AI search
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
OAI-SearchBot | OpenAI | Partly blocked | line 117 · Disallow: /maestro/api/ line 118 · Disallow: /api/ and 23 more |
PerplexityBot | Perplexity | Partly blocked | line 65 · Disallow: /lecture/ line 66 · Disallow: /maestro/api/ and 24 more |
Claude-SearchBot | Anthropic | Allowed | no rule matches the home page |
DuckAssistBot | DuckDuckGo | Allowed | no rule matches the home page |
Amazonbot | Amazon | Allowed | no rule matches the home page |
YouBot | You.com | Allowed | no rule matches the home page |
AI training
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
GPTBot | OpenAI | Partly blocked | line 65 · Disallow: /lecture/ line 66 · Disallow: /maestro/api/ and 24 more |
ClaudeBot | Anthropic | Partly blocked | line 65 · Disallow: /lecture/ line 66 · Disallow: /maestro/api/ and 24 more |
Google-Extended | Partly blocked | line 65 · Disallow: /lecture/ line 66 · Disallow: /maestro/api/ and 24 more | |
CCBot | Common Crawl | Partly blocked | line 65 · Disallow: /lecture/ line 66 · Disallow: /maestro/api/ and 24 more |
Applebot-Extended | Apple | Allowed | no rule matches the home page |
GoogleOther | Allowed | no rule matches the home page | |
Meta-ExternalAgent | Meta | Blocked | line 216 · Disallow: / under User-agent: meta-externalagent |
Bytespider | ByteDance | Allowed | no rule matches the home page |
User-triggered fetchers
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
ChatGPT-User | OpenAI | Partly blocked | line 117 · Disallow: /maestro/api/ line 118 · Disallow: /api/ and 23 more |
Claude-User | Anthropic | Allowed | no rule matches the home page |
Perplexity-User | Perplexity | Allowed | no rule matches the home page |
MistralAI-User | Mistral | Partly blocked | line 65 · Disallow: /lecture/ line 66 · Disallow: /maestro/api/ and 24 more |
Meta-ExternalFetcher | Meta | Allowed | no rule matches the home page |
SEO tools
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
AhrefsBot | Ahrefs | Allowed | no rule matches the home page |
SemrushBot | Semrush | Allowed | no rule matches the home page |
MJ12bot | Majestic | Allowed | no rule matches the home page |
DotBot | Moz | Allowed | no rule matches the home page |
View www.coursera.org/robots.txt · 218 lines
What do the bots actually get?
This page reads robots.txt, which states what coursera.org 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 coursera.org Test a path in the robots.txt tester
History
- 19 October 2026: first checked.
Questions
Does coursera.org block GPTBot?
Partly. coursera.org’s robots.txt keeps GPTBot out of some paths, such as /lecture/, and lets it crawl the rest. GPTBot is OpenAI’s crawler for training data; blocking it doesn’t affect ChatGPT search, which uses OAI-SearchBot. Checked 9 November 2026.
Does coursera.org block ClaudeBot?
Partly. coursera.org’s robots.txt keeps ClaudeBot out of some paths, such as /lecture/, and lets it crawl the rest. ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.
Does coursera.org block Google-Extended?
Partly. coursera.org’s robots.txt keeps Google-Extended out of some paths, such as /lecture/, and lets it crawl the rest. 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 coursera.org block PerplexityBot?
Partly. coursera.org’s robots.txt keeps PerplexityBot out of some paths, such as /lecture/, and lets it crawl the rest. PerplexityBot is the crawler that indexes pages for Perplexity’s answers. Checked 9 November 2026.
Can ChatGPT search find coursera.org?
Partly. coursera.org’s robots.txt keeps OAI-SearchBot out of some paths, such as /maestro/api/, and lets it crawl the rest. OAI-SearchBot is the crawler behind ChatGPT search; blocking it keeps the site out of ChatGPT’s search answers. Checked 9 November 2026.