tier1.jp used Google Analytics, but in 2020-06-23 suspended using it due to security issues.

Now we only using web server access logs.

Our Privacy Policy

  • We basically use it to keep our content up to date.
  • We do not know user specific data; no name, no address, no phone number.
  • We do not sell those information for any third party.
  • We respect your privacy.
  • We do not track you.