Who blocks AI · #229 in the Majestic Million

robots.txt · checked 9 Nov 2026

Does bandcamp.com block AI crawlers?

Yes. bandcamp.com’s robots.txt blocks 7 of the 19 AI crawlers we track, including GPTBot, ClaudeBot, Google-Extended and 4 more. Search engines such as Googlebot and Bingbot may crawl it.

GPTBotBlocked OAI-SearchBotAllowed ClaudeBotBlocked PerplexityBotAllowed Google-ExtendedBlocked CCBotBlocked

robots.txt: bandcamp.com/robots.txt · 61 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`	Google	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	Allowed	no rule matches the home page
`PerplexityBot`	Perplexity	Allowed	no rule matches the home page
`Claude-SearchBot`	Anthropic	Allowed	no rule matches the home page
`DuckAssistBot`	DuckDuckGo	Allowed	no rule matches the home page
`Amazonbot`	Amazon	Blocked	line 60 · `Disallow: /` under `User-agent: Amazonbot`
`YouBot`	You.com	Allowed	no rule matches the home page

AI training

Bot	Operator	robots.txt	Deciding line
`GPTBot`	OpenAI	Blocked	line 56 · `Disallow: /` under `User-agent: GPTBot`
`ClaudeBot`	Anthropic	Blocked	line 47 · `Disallow: /` under `User-agent: ClaudeBot`
`Google-Extended`	Google	Blocked	line 54 · `Disallow: /` under `User-agent: Google-Extended`
`CCBot`	Common Crawl	Blocked	line 45 · `Disallow: /` under `User-agent: CCBot`
`Applebot-Extended`	Apple	Allowed	no rule matches the home page
`GoogleOther`	Google	Allowed	no rule matches the home page
`Meta-ExternalAgent`	Meta	Blocked	line 52 · `Disallow: /` under `User-agent: meta-externalagent`
`Bytespider`	ByteDance	Blocked	line 43 · `Disallow: /` under `User-agent: Bytespider`

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	Blocked	line 36 · `Disallow: /` under `User-agent: SemrushBot`
`MJ12bot`	Majestic	Allowed	no rule matches the home page
`DotBot`	Moz	Allowed	no rule matches the home page

View bandcamp.com/robots.txt · 61 lines

1User-agent: *

2Disallow: /tools

3Disallow: /checkout

4Disallow: /download_check

5Disallow: /cart/

6Disallow: /corpbanner/

7Disallow: /stream

8Disallow: /api/

9Disallow: /design_tokens

10Disallow: /search

12Allow: /api/currency_data/

14Allow: /api/discover/1/discover_mobile_web

15Allow: /api/discover/1/discover_web

16Allow: /api/tag_search/2/related_tags

18Disallow: /*_cb$

20User-agent: NextGenSearchBot

21Disallow: /

22User-agent: GeedoShopProductFinder

23Disallow: /

24User-agent: ImagesiftBot

25Crawl-delay: 5

27User-agent: EdisterBot

28Disallow: /

29User-agent: Ezooms

30Disallow: /

31User-agent: SWEBot

32Disallow: /

33User-agent: discobot

34Disallow: /

35User-agent: SemrushBot

36Disallow: /

37User-agent: grapeshot

38Disallow: /

39User-agent: BUbiNG

40Disallow: /

42User-agent: Bytespider

43Disallow: /

44User-agent: CCBot

45Disallow: /

46User-agent: ClaudeBot

47Disallow: /

48User-agent: Diffbot

49Disallow: /

50User-agent: FacebookBot

51User-agent: meta-externalagent

52Disallow: /

53User-agent: Google-Extended

54Disallow: /

55User-agent: GPTBot

56Disallow: /

57User-agent: omgili

58Disallow: /

59User-agent: Amazonbot

60Disallow: /

What do the bots actually get?

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

History

19 October 2026: first checked.

Questions

Does bandcamp.com block GPTBot?

Yes. bandcamp.com’s robots.txt disallows GPTBot from the whole site (line 56: 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 bandcamp.com block ClaudeBot?

Yes. bandcamp.com’s robots.txt disallows ClaudeBot from the whole site (line 47: Disallow: /). ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.

Does bandcamp.com block Google-Extended?

Yes. bandcamp.com’s robots.txt disallows Google-Extended from the whole site (line 54: 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 bandcamp.com block PerplexityBot?

No. bandcamp.com’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 bandcamp.com?

Yes. bandcamp.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.