Privacy Policy

Last updated: January 4, 2026

1. Introduction

This Privacy Policy describes how Hidetaka.dev ("we", "us", or "our") collects, uses, and shares information when you visit our website at https://hidetaka.dev (the "Site").

2. Information We Collect

We collect information about your visit to our Site through various third-party services:

2.1 Google Analytics

We use Google Analytics to understand how visitors use our Site. Google Analytics collects information such as:

  • Pages visited and time spent on each page
  • Browser type and version
  • Device type (desktop, mobile, tablet)
  • Geographic location (country, city)
  • Referring websites

For more information about how Google uses data, please visit Google's Privacy Policy.

2.2 Microsoft Clarity

We use Microsoft Clarity to understand user behavior and improve user experience. Clarity collects:

  • User interactions (clicks, scrolls, mouse movements)
  • Session recordings
  • Heatmaps of user activity

For more information, please visit Microsoft's Privacy Statement.

2.3 Hatena Star

We use Hatena Star on Japanese blog pages. Hatena Star is a service provided by Hatena Co., Ltd. that allows users to add lightweight reactions (stars) to articles.

A Hatena account is required to use Hatena Star. For terms of service and privacy policy, please refer to:

3. Cookies and Tracking Technologies

We use cookies and similar tracking technologies to collect and track information about your browsing activities. Cookies are small text files that are stored on your device.

Types of cookies we use:

  • Analytics Cookies: Help us understand how visitors interact with our Site
  • Functional Cookies: Enable certain functionality such as theme preferences

You can control cookies through your browser settings. However, disabling cookies may affect the functionality of our Site.

4. How We Use Information

We use the collected information for the following purposes:

  • To analyze and improve our Site's content and user experience
  • To understand visitor behavior and preferences
  • To maintain and improve the security of our Site

5. Third-Party Services

Our Site integrates with the following third-party services:

  • Google Analytics: Web analytics service
  • Microsoft Clarity: User behavior analytics
  • Hatena Star: Blog reaction feature (Japanese pages only)

These third-party services have their own privacy policies. We encourage you to review them.

6. Data Security

We implement reasonable security measures to protect the information collected through our Site. However, no method of transmission over the Internet or electronic storage is 100% secure.

7. Children's Privacy

Our Site is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13.

8. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. The updated version will be indicated by an updated "Last updated" date at the top of this page.

9. Contact Us

If you have any questions about this Privacy Policy, please contact us: