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Privacy Policy, Disclaimer, and Advertising Disclosure

This document is a template

The following is a general template and is not a finished version ready to publish as-is. What you should state changes depending on the form of operation (individual / corporation), the region of the target readers (Japan / EU, etc.), and the analytics tools and advertising programs you actually adopt. Before publishing, fill in the TODO items below and consult a professional (lawyer, administrative scrivener, etc.) as needed. This text is not legal advice.

Last updated: 2026-07-21

1. Operator

2. Web Analytics (Cookies, etc.)

This site uses web analytics to understand usage and improve the site.

  • Tool used: Cloudflare Web Analytics
  • The analytics on this site do not use Cookies and do not collect or store personally identifying information (such as names, email addresses, or cross-device identifiers). Statistical information such as page views, referrers, approximate country, and browser used is obtained as anonymous aggregates.
  • For details, please review the provider's privacy explanation (Cloudflare Web Analytics).

3. Disclosure Regarding Advertising and Affiliate Programs

This site may in the future carry affiliate programs or advertisements provided by third parties. In that case, if a reader purchases or applies for a product or service via a link on this site, this site may receive compensation such as a referral fee from the partner.

Compliance with the Act against Unjustifiable Premiums and Misleading Representations (regulation of stealth marketing)

Under Japan's Act against Unjustifiable Premiums and Misleading Representations, the practice of displaying advertising while concealing that it is advertising (stealth marketing) is regulated (in force since October 2023). On this site, for pages and links that include advertising or affiliates, we make it clear that they are advertising by displaying labels such as "Advertisement" or "PR," or by providing a path to this disclosure page.

  • We strive to select the advertisements and links we carry to be those considered useful to the readers of this site.
  • However, their inclusion does not guarantee the quality or results of any particular product or service. The final decision to purchase or apply is the reader's own responsibility.
  • Partners:

4. Disclaimer

  • The content of this site is created for learning purposes with reference to public specifications such as 3GPP, striving for accuracy as much as possible, but it does not guarantee the accuracy, completeness, or timeliness of the content.
  • The interpretation and implementation of specifications may differ by Release and vendor. For practical work and product development, always check the primary sources (such as 3GPP specifications) and each vendor's official information (References).
  • The operator bears no responsibility for any damages arising from the use of this site or of external sites linked from this site.
  • The content of this site may be changed or deleted without notice.
  • The copyright of the text and figures on this site belongs to the operator.
  • If you reproduce or introduce this site, please clearly indicate (link to) the URL of this site as the source.
  • Transcription or diversion of this site's documents is not permitted.
  • "3GPP" and other standard names, organization names, and product names are trademarks or registered trademarks of their respective rights holders. This site is an independently operated learning site with no affiliation to these rights holders.

6. Changes to This Policy

The content of this policy may be revised in response to changes in laws or in the site's operating policy. If there are important changes, we will announce them on this page.