A survey of the official websites of Nikkei 225 constituents found that 9 companies have adopted llms.txt (5.0%), 9 companies specifically name AI crawlers in robots.txt (4.9%), and no companies fully reject bots used for AI search.
The survey covered the official websites of Nikkei 225 constituents. Nine companies had adopted llms.txt, representing 5.0% of the total. Nine companies specifically name AI crawlers in robots.txt, representing 4.9% of the total.
No companies fully rejected bots used for AI search. These figures were announced in a press release and can be interpreted as providing a degree of insight into the configuration status of official websites.
The survey results have been shared through multiple information providers and made public as wording used in an official release. Additional verification and ongoing monitoring may be carried out in the future.