Who blocks AI · #703 in the Majestic Million
Does smh.com.au block AI crawlers?
Yes. smh.com.au’s robots.txt blocks 14 of the 19 AI crawlers we track, including GPTBot, ClaudeBot, Google-Extended and 11 more. Search engines such as Googlebot and Bingbot may crawl it.
GPTBotBlockedOAI-SearchBotBlockedClaudeBotBlockedPerplexityBotBlockedGoogle-ExtendedBlockedCCBotBlocked- robots.txt
- www.smh.com.au/robots.txt · 243 lines
- llms.txt
- none
- 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 21 · Allow: / under User-agent: * | |
Bingbot | Microsoft | Allowed | line 21 · Allow: / under User-agent: * |
DuckDuckBot | DuckDuckGo | Allowed | line 21 · Allow: / under User-agent: * |
Applebot | Apple | Allowed | line 21 · Allow: / under User-agent: * |
PetalBot | Huawei | Allowed | line 21 · Allow: / under User-agent: * |
YandexBot | Yandex | Allowed | line 21 · Allow: / under User-agent: * |
Baiduspider | Baidu | Allowed | line 21 · Allow: / under User-agent: * |
AI search
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
OAI-SearchBot | OpenAI | Blocked | line 47 · Disallow: / under User-agent: OAI-SearchBot |
PerplexityBot | Perplexity | Blocked | line 77 · Disallow: / under User-agent: perplexitybot |
Claude-SearchBot | Anthropic | Allowed | line 21 · Allow: / under User-agent: * |
DuckAssistBot | DuckDuckGo | Blocked | line 139 · Disallow: / under User-agent: duckassistbot |
Amazonbot | Amazon | Blocked | line 92 · Disallow: / under User-agent: amazonbot |
YouBot | You.com | Blocked | line 87 · Disallow: / under User-agent: youbot |
AI training
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
GPTBot | OpenAI | Blocked | line 45 · Disallow: / under User-agent: GPTBot |
ClaudeBot | Anthropic | Blocked | line 58 · Disallow: / under User-agent: claudebot |
Google-Extended | Blocked | line 38 · Disallow: / under User-agent: Google-Extended | |
CCBot | Common Crawl | Blocked | line 124 · Disallow: / under User-agent: ccbot |
Applebot-Extended | Apple | Blocked | line 72 · Disallow: / under User-agent: applebot-extended |
GoogleOther | Allowed | line 21 · Allow: / under User-agent: * | |
Meta-ExternalAgent | Meta | Blocked | line 65 · Disallow: / under User-agent: meta-externalagent |
Bytespider | ByteDance | Blocked | line 119 · Disallow: / under User-agent: bytespider |
User-triggered fetchers
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
ChatGPT-User | OpenAI | Blocked | line 43 · Disallow: / under User-agent: ChatGPT-User |
Claude-User | Anthropic | Allowed | line 21 · Allow: / under User-agent: * |
Perplexity-User | Perplexity | Allowed | line 21 · Allow: / under User-agent: * |
MistralAI-User | Mistral | Allowed | line 21 · Allow: / under User-agent: * |
Meta-ExternalFetcher | Meta | Blocked | line 67 · Disallow: / under User-agent: meta-externalfetcher |
SEO tools
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
AhrefsBot | Ahrefs | Allowed | line 21 · Allow: / under User-agent: * |
SemrushBot | Semrush | Allowed | line 21 · Allow: / under User-agent: * |
MJ12bot | Majestic | Allowed | line 21 · Allow: / under User-agent: * |
DotBot | Moz | Allowed | line 21 · Allow: / under User-agent: * |
View www.smh.com.au/robots.txt · 243 lines
What do the bots actually get?
This page reads robots.txt, which states what smh.com.au 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 smh.com.au Test a path in the robots.txt tester
History
- 19 October 2026: first checked.
Questions
Does smh.com.au block GPTBot?
Yes. smh.com.au’s robots.txt disallows GPTBot from the whole site (line 45: Disallow: /). GPTBot is OpenAI’s crawler for training data; blocking it doesn’t affect ChatGPT search, which uses OAI-SearchBot. Checked 9 November 2026.
Does smh.com.au block ClaudeBot?
Yes. smh.com.au’s robots.txt disallows ClaudeBot from the whole site (line 58: Disallow: /). ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.
Does smh.com.au block Google-Extended?
Yes. smh.com.au’s robots.txt disallows Google-Extended from the whole site (line 38: Disallow: /). 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 smh.com.au block PerplexityBot?
Yes. smh.com.au’s robots.txt disallows PerplexityBot from the whole site (line 77: Disallow: /). PerplexityBot is the crawler that indexes pages for Perplexity’s answers. Checked 9 November 2026.
Can ChatGPT search find smh.com.au?
Not through its own crawler. smh.com.au’s robots.txt disallows OAI-SearchBot from the whole site (line 47: Disallow: /). OAI-SearchBot is the crawler behind ChatGPT search; blocking it keeps the site out of ChatGPT’s search answers. Checked 9 November 2026.