Who blocks AI · #251 in the Majestic Million

robots.txt · checked 9 Nov 2026

Does hugedomains.com block AI crawlers?

No. hugedomains.com’s robots.txt lets all 19 AI crawlers we track crawl the site, though it keeps PerplexityBot, GPTBot and 2 more out of some paths. Search engines such as Googlebot and Bingbot may crawl it.

GPTBotPartly blocked OAI-SearchBotAllowed ClaudeBotPartly blocked PerplexityBotPartly blocked Google-ExtendedPartly blocked CCBotAllowed

robots.txt: www.hugedomains.com/robots.txt · 42 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`	Google	Partly blocked	line 31 · `Disallow: /cart/`
`Bingbot`	Microsoft	Allowed	no rule matches the home page
`DuckDuckBot`	DuckDuckGo	Allowed	no rule matches the home page
`Applebot`	Apple	Partly blocked	line 31 · `Disallow: /cart/`
`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	Allowed	no rule matches the home page
`PerplexityBot`	Perplexity	Partly blocked	line 31 · `Disallow: /cart/`
`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 31 · `Disallow: /cart/`
`ClaudeBot`	Anthropic	Partly blocked	line 31 · `Disallow: /cart/`
`Google-Extended`	Google	Partly blocked	line 31 · `Disallow: /cart/`
`CCBot`	Common Crawl	Allowed	no rule matches the home page
`Applebot-Extended`	Apple	Allowed	no rule matches the home page
`GoogleOther`	Google	Allowed	no rule matches the home page
`Meta-ExternalAgent`	Meta	Allowed	no rule matches the home page
`Bytespider`	ByteDance	Allowed	no rule matches the home page

User-triggered fetchers

Bot	Operator	robots.txt	Deciding line
`ChatGPT-User`	OpenAI	Allowed	no rule matches the home page
`Claude-User`	Anthropic	Allowed	no rule matches the home page
`Perplexity-User`	Perplexity	Allowed	no rule matches the home page
`MistralAI-User`	Mistral	Allowed	no rule matches the home page
`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	Blocked	line 38 · `Disallow: /` under `User-agent: dotbot`

View www.hugedomains.com/robots.txt · 42 lines

1User-Agent: *

2Disallow: /shopping_cart.cfm

3Disallow: /coupon.cfm

4Disallow: /checkout.cfm

5Disallow: /checkout-escrow.cfm

6Disallow: /checkout-success.cfm

7Disallow: /checkout-escrow-success.cfm

8Disallow: /checkout-escrow-pay.cfm

9Disallow: /mytestimonial.cfm

10Disallow: /chat/chat.cfm

11Disallow: /shopping_cart.ssl

12Disallow: /checkout.ssl

13Disallow: /checkout-escrow.ssl

14Disallow: /checkout-success.ssl

15Disallow: /checkout-escrow-success.ssl

16Disallow: /checkout-escrow-pay.ssl

17Disallow: /rjs/e-i.cfm

18Disallow: /rjs/

19Allow: /llms.txt

20Allow: /llms-full.txt

22# Specific rules for AI agents (e.g., OpenAI, Anthropic, Perplexity)

23User-agent: GPTBot

24User-agent: ClaudeBot

25User-agent: PerplexityBot

26User-agent: Google-Extended

27User-agent: Googlebot

28Allow: /llms.txt

29Allow: /llms-full.txt

30Allow: /public-docs/

31Disallow: /cart/

34User-agent: MJ12bot

35Disallow: /

37User-agent: dotbot

38Disallow: /

What do the bots actually get?

This page reads robots.txt, which states what hugedomains.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 hugedomains.com Test a path in the robots.txt tester

History

19 October 2026: first checked.
9 November 2026: now blocks part of the site to Googlebot; now blocks part of the site to Applebot; now blocks part of the site to PerplexityBot; now blocks part of the site to GPTBot; now blocks part of the site to ClaudeBot; now blocks part of the site to Google-Extended.

Questions

Does hugedomains.com block GPTBot?

Partly. hugedomains.com’s robots.txt keeps GPTBot out of some paths, such as /cart/, 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 hugedomains.com block ClaudeBot?

Partly. hugedomains.com’s robots.txt keeps ClaudeBot out of some paths, such as /cart/, and lets it crawl the rest. ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.

Does hugedomains.com block Google-Extended?

Partly. hugedomains.com’s robots.txt keeps Google-Extended out of some paths, such as /cart/, 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 hugedomains.com block PerplexityBot?

Partly. hugedomains.com’s robots.txt keeps PerplexityBot out of some paths, such as /cart/, 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 hugedomains.com?

Yes. hugedomains.com’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.