Who blocks AI · #683 in the Majestic Million

robots.txt · checked 9 Nov 2026

Does nikkei.com block AI crawlers?

Yes. nikkei.com’s robots.txt blocks 17 of the 19 AI crawlers we track, including GPTBot, ClaudeBot, Google-Extended and 14 more. Search engines such as Googlebot and Bingbot may crawl it.

GPTBotBlocked OAI-SearchBotBlocked ClaudeBotBlocked PerplexityBotBlocked Google-ExtendedBlocked CCBotBlocked

robots.txt: www.nikkei.com/robots.txt · 147 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	Blocked	line 20 · `Disallow: /` under `User-agent: OAI-SearchBot`
`PerplexityBot`	Perplexity	Blocked	line 62 · `Disallow: /` under `User-agent: PerplexityBot`
`Claude-SearchBot`	Anthropic	Blocked	line 20 · `Disallow: /` under `User-agent: Claude-SearchBot`
`DuckAssistBot`	DuckDuckGo	Blocked	line 113 · `Disallow: /` under `User-agent: DuckAssistBot`
`Amazonbot`	Amazon	Blocked	line 98 · `Disallow: /` under `User-agent: AmazonBot`
`YouBot`	You.com	Blocked	line 128 · `Disallow: /` under `User-agent: YouBot`

AI training

Bot	Operator	robots.txt	Deciding line
`GPTBot`	OpenAI	Blocked	line 20 · `Disallow: /` under `User-agent: GPTBot`
`ClaudeBot`	Anthropic	Blocked	line 20 · `Disallow: /` under `User-agent: ClaudeBot`
`Google-Extended`	Google	Blocked	line 20 · `Disallow: /` under `User-agent: Google-Extended`
`CCBot`	Common Crawl	Blocked	line 38 · `Disallow: /` under `User-agent: CCBot`
`Applebot-Extended`	Apple	Blocked	line 56 · `Disallow: /` under `User-agent: Applebot-Extended`
`GoogleOther`	Google	Allowed	no rule matches the home page
`Meta-ExternalAgent`	Meta	Blocked	line 86 · `Disallow: /` under `User-agent: Meta-ExternalAgent`
`Bytespider`	ByteDance	Blocked	line 71 · `Disallow: /` under `User-agent: Bytespider`

User-triggered fetchers

Bot	Operator	robots.txt	Deciding line
`ChatGPT-User`	OpenAI	Blocked	line 20 · `Disallow: /` under `User-agent: ChatGPT-User`
`Claude-User`	Anthropic	Blocked	line 20 · `Disallow: /` under `User-agent: Claude-User`
`Perplexity-User`	Perplexity	Blocked	line 68 · `Disallow: /` under `User-agent: Perplexity-User`
`MistralAI-User`	Mistral	Allowed	no rule matches the home page
`Meta-ExternalFetcher`	Meta	Blocked	line 107 · `Disallow: /` under `User-agent: meta-externalfetcher`

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.nikkei.com/robots.txt · 147 lines

1User-agent: *

2Allow: /markets/kabu/stkcomp/$

3Allow: /markets/kabu/gyoshucomp/$

4Disallow: /.tools

5Disallow: /markets/kabu/stkcomp/

6Disallow: /markets/kabu/gyoshucomp/

7Disallow: /.resources/k-components/rtoaster/

9# If you want to use our data in machine learning, please contact us from the following url.

10# ja: https://nkbb.nikkei.co.jp/article/

11# en: https://nkbb.nikkei.co.jp/en/dataset/nikkei-news-articles

13User-agent: GPTBot

14User-agent: OAI-SearchBot

15User-agent: ChatGPT-User

16User-agent: ClaudeBot

17User-agent: Claude-SearchBot

18User-agent: Claude-User

19User-agent: Google-Extended

20Disallow: /

21Allow: /promotion/$

22Allow: /promotion/family/$

23Allow: /promotion/onboarding/guide_r3/$

24Allow: /promotion/onboarding/guide_r3/story_shukatsu_01/$

25Allow: /promotion/onboarding/guide_r3/method_news/$

26Allow: /promotion/campaign/student/startguide/$

27Allow: /promotion/about/$

28Allow: /promotion/houjin/$

29Allow: /promotion/houjin/price/$

30Allow: /promotion/houjin/welfare/$

31Allow: /promotion/houjin/location/$

32Allow: /promotion/houjin/house-organ/$

33Allow: /promotion/houjin/casestudies/

34Allow: /promotion/houjin/download/

35Allow: /promotion/houjin/guide/

37User-agent: CCBot

38Disallow: /

40User-agent: anthropic-ai

41Disallow: /

43User-agent: cohere-ai

44Disallow: /

46User-Agent: omgili

47Disallow: /

49User-Agent: omgilibot

50Disallow: /

52User-Agent: ICC-Crawler

53Disallow: /

55User-agent: Applebot-Extended

56Disallow: /

58User-agent: Claude-Web

59Disallow: /

61User-agent: PerplexityBot

62Disallow: /

64User-agent: Perplexity-ai

65Disallow: /

67User-agent: Perplexity-User

68Disallow: /

70User-agent: Bytespider

71Disallow: /

73User-agent: Diffbot

74Disallow: /

76User-agent: FacebookBot

77Disallow: /

79User-agent: MJ12bot

80Disallow: /

82User-agent: PiplBot

83Disallow: /

85User-agent: Meta-ExternalAgent

86Disallow: /

88User-agent: Timpibot

89Disallow: /

91User-agent: Webzio

92Disallow: /

94User-agent: Webzio-extended

95Disallow: /

97User-agent: AmazonBot

98Disallow: /

100User-agent: cohere-training-data-crawler

101Disallow: /

102

103User-agent: magpie-crawler

104Disallow: /

105

106User-agent: meta-externalfetcher

107Disallow: /

108

109User-agent: Scrapy

110Disallow: /

111

112User-agent: DuckAssistBot

113Disallow: /

114

115User-agent: Google-CloudVertexBot

116Disallow: /

117

118User-agent: AI2Bot

119Disallow: /

120

121User-agent: AI2Bot-Dolma

122Disallow: /

123

124User-agent: img2dataset

125Disallow: /

126

127User-agent: YouBot

128Disallow: /

129

130User-agent: SeekrBot

131Disallow: /

132

133User-agent: OpenindexSpider

134Disallow: /

135

136User-agent: Gensparkbot

137Disallow: /

138

139User-agent: SBIntuitionsBot

140Disallow: /

141

142User-agent: SBIntuitions-SearchBot

143Disallow: /

144

145Sitemap: https://www.nikkei.com/sitemap.xml

146Sitemap: https://www.nikkei.com/sitemaps/topics_sitemap_index.xml

147

What do the bots actually get?

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

History

19 October 2026: first checked.

Questions

Does nikkei.com block GPTBot?

Yes. nikkei.com’s robots.txt disallows GPTBot from the whole site (line 20: 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 nikkei.com block ClaudeBot?

Yes. nikkei.com’s robots.txt disallows ClaudeBot from the whole site (line 20: Disallow: /). ClaudeBot is Anthropic’s crawler for training data. Checked 9 November 2026.

Does nikkei.com block Google-Extended?

Yes. nikkei.com’s robots.txt disallows Google-Extended from the whole site (line 20: 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 nikkei.com block PerplexityBot?

Yes. nikkei.com’s robots.txt disallows PerplexityBot from the whole site (line 62: Disallow: /). PerplexityBot is the crawler that indexes pages for Perplexity’s answers. Checked 9 November 2026.

Can ChatGPT search find nikkei.com?

Not through its own crawler. nikkei.com’s robots.txt disallows OAI-SearchBot from the whole site (line 20: Disallow: /). OAI-SearchBot is the crawler behind ChatGPT search; blocking it keeps the site out of ChatGPT’s search answers. Checked 9 November 2026.