Who blocks AI · #313 in the Majestic Million
Does theatlantic.com block AI crawlers?
Yes. theatlantic.com’s robots.txt blocks 13 of the 19 AI crawlers we track, including ClaudeBot, Google-Extended, PerplexityBot and 10 more. It also blocks PetalBot among search engines.
GPTBotPartly blockedOAI-SearchBotPartly blockedClaudeBotBlockedPerplexityBotBlockedGoogle-ExtendedBlockedCCBotBlocked- robots.txt
- www.theatlantic.com/robots.txt · 258 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 | Partly blocked | line 153 · Disallow: /ab/* line 154 · Disallow: /video/embed/ and 3 more | |
Bingbot | Microsoft | Partly blocked | line 82 · Disallow: /ab/* line 83 · Disallow: /video/embed/ and 3 more |
DuckDuckBot | DuckDuckGo | Allowed | line 37 · Allow: / under User-agent: * |
Applebot | Apple | Partly blocked | line 56 · Disallow: /ab/* line 57 · Disallow: /video/embed/ and 3 more |
PetalBot | Huawei | Blocked | line 213 · Disallow: / under User-agent: PetalBot |
YandexBot | Yandex | Allowed | line 37 · Allow: / under User-agent: * |
Baiduspider | Baidu | Allowed | line 37 · Allow: / under User-agent: * |
AI search
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
OAI-SearchBot | OpenAI | Partly blocked | line 195 · Disallow: /ab/* line 196 · Disallow: /video/embed/ and 3 more |
PerplexityBot | Perplexity | Blocked | line 217 · Disallow: / under User-agent: PerplexityBot |
Claude-SearchBot | Anthropic | Blocked | line 110 · Disallow: / under User-agent: Claude-SearchBot |
DuckAssistBot | DuckDuckGo | Partly blocked | line 130 · Disallow: /ab/* line 131 · Disallow: /video/embed/ and 3 more |
Amazonbot | Amazon | Blocked | line 49 · Disallow: / under User-agent: Amazonbot |
YouBot | You.com | Allowed | line 37 · Allow: / under User-agent: * |
AI training
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
GPTBot | OpenAI | Partly blocked | line 162 · Disallow: /ab/* line 163 · Disallow: /video/embed/ and 3 more |
ClaudeBot | Anthropic | Blocked | line 106 · Disallow: / under User-agent: ClaudeBot |
Google-Extended | Blocked | line 149 · Disallow: / under User-agent: Google-Extended | |
CCBot | Common Crawl | Blocked | line 94 · Disallow: / under User-agent: CCBot |
Applebot-Extended | Apple | Blocked | line 65 · Disallow: / under User-agent: Applebot-Extended |
GoogleOther | Allowed | line 37 · Allow: / under User-agent: * | |
Meta-ExternalAgent | Meta | Blocked | line 174 · Disallow: / under User-agent: Meta-ExternalAgent |
Bytespider | ByteDance | Blocked | line 91 · Disallow: / under User-agent: Bytespider |
User-triggered fetchers
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
ChatGPT-User | OpenAI | Partly blocked | line 97 · Disallow: /ab/* line 98 · Disallow: /video/embed/ and 3 more |
Claude-User | Anthropic | Blocked | line 114 · Disallow: / under User-agent: Claude-User |
Perplexity-User | Perplexity | Blocked | line 221 · Disallow: / under User-agent: Perplexity-User |
MistralAI-User | Mistral | Blocked | line 180 · Disallow: / under User-agent: MistralAI-User |
Meta-ExternalFetcher | Meta | Blocked | line 177 · Disallow: / under User-agent: Meta-ExternalFetcher |
SEO tools
| Bot | Operator | robots.txt | Deciding line |
|---|---|---|---|
AhrefsBot | Ahrefs | Allowed | line 37 · Allow: / under User-agent: * |
SemrushBot | Semrush | Allowed | line 37 · Allow: / under User-agent: * |
MJ12bot | Majestic | Allowed | line 37 · Allow: / under User-agent: * |
DotBot | Moz | Allowed | line 37 · Allow: / under User-agent: * |
View www.theatlantic.com/robots.txt · 258 lines
What do the bots actually get?
This page reads robots.txt, which states what theatlantic.com 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 theatlantic.com Test a path in the robots.txt tester
History
- 19 October 2026: first checked.
- 2 November 2026: now blocks part of the site to Bingbot; now blocks part of the site to Applebot; now blocks part of the site to OAI-SearchBot; now blocks part of the site to DuckAssistBot; now blocks part of the site to GPTBot; now blocks part of the site to ChatGPT-User.
Questions
Does theatlantic.com block GPTBot?
Partly. theatlantic.com’s robots.txt keeps GPTBot out of some paths, such as /ab/*, 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 theatlantic.com block ClaudeBot?
Yes. theatlantic.com’s robots.txt disallows ClaudeBot from the whole site (line 106: Disallow: /). ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.
Does theatlantic.com block Google-Extended?
Yes. theatlantic.com’s robots.txt disallows Google-Extended from the whole site (line 149: 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 theatlantic.com block PerplexityBot?
Yes. theatlantic.com’s robots.txt disallows PerplexityBot from the whole site (line 217: Disallow: /). PerplexityBot is the crawler that indexes pages for Perplexity’s answers. Checked 9 November 2026.
Can ChatGPT search find theatlantic.com?
Partly. theatlantic.com’s robots.txt keeps OAI-SearchBot out of some paths, such as /ab/*, 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.