Privacy and advertising
Analytics
We use Google Analytics to understand how the site is used. It uses cookies to collect information such as the pages viewed and time on site, which does not identify you personally.
We use this information only to improve the site. You can disable cookies in your browser settings; see Google's privacy policy for details.
Advertising (affiliate links)
The site takes part in affiliate programmes such as A8.net and Moshimo Affiliate. Some Japanese pages show advertising marked "PR". If you sign up for a product or service through one of these links, the operator may receive a commission.
Advertising and commissions never affect the numbers, the reports or the rankings. Please check the advertised services directly with their providers.
Messages you send us
Names and email addresses you send us are used only to reply, and are not shared with third parties except where required by law.
Disclaimer
We work to keep the information accurate, but do not guarantee its accuracy or completeness. The operator is not liable for any loss arising from use of the information on this site.
Changes
This page may be updated as needed. Last updated: November 2026.