Privacy Policy

1. Purpose of Collecting and Using Personal Information

Ki Chang's Developer Blog (hereinafter referred to as the “Blog”) collects and uses personal information for the following purposes:

• Website visitor statistics analysis (Google Analytics)
• Advertisement display and optimization (Google AdSense)
• Service improvement and user experience enhancement

2. Personal Information Collected

2.1. Automatically Collected Information

The following information is automatically collected when you visit the website:

• Access Logs: IP address (anonymized), cookies, visit date/time
• Device Information: Browser type, OS, screen resolution
• Service Usage Records: Pages visited, time spent, click paths
• Location Information: Country, city level (not GPS)

2.2. Google Analytics Data

This blog uses Google Analytics to collect anonymized usage data.

• Page views and session information
• Traffic sources (search engines, direct visits, etc.)
• User behavior patterns (scrolling, clicks, etc.)
• Demographic information (age group, gender - anonymous)

2.3. Google AdSense Cookies

This blog displays advertisements through Google AdSense, which uses cookies.

• Cookies for ad personalization
• Cookies for measuring ad performance
• Users can disable personalized ads in Google ad settings

3. Retention Period of Personal Information

• Google Analytics Data: 26 months after collection (Google default setting)
• Google AdSense Cookies: Up to 2 years
• Access Logs: 1 year after collection

4. Third-Party Disclosure of Personal Information

This blog does not provide users' personal information to third parties except in the following cases:

• Google LLC: For providing Google Analytics and AdSense services
• Legal Requirements: When required by law

Google's Privacy Policy:https://policies.google.com/privacy

5. User Rights

Users can exercise the following rights:

• Reject Cookies: You can reject cookies through browser settings
• Google Ad Settings: You can disable personalized Google ads
  https://adssettings.google.com/
• Block Analytics: You can use Google Analytics opt-out browser add-on
  https://tools.google.com/dlpage/gaoptout

6. Use of Cookies

This blog uses cookies to improve user experience.

6.1. What are Cookies?

Cookies are small text files stored in your browser when you visit a website.

6.2. Purpose of Use

• Visitor statistics analysis (Google Analytics)
• Display relevant advertisements (Google AdSense)
• Save user preferences

6.3. How to Reject Cookies

• Chrome: Settings → Privacy and security → Cookies and other site data
• Safari: Preferences → Privacy → Cookies and website data
• Firefox: Options → Privacy & Security → Cookies and Site Data

Rejecting cookies may limit some service functions.

7. Privacy Officer

If you have any questions regarding the processing of personal information, please contact us below.

8. Changes to Privacy Policy

This privacy policy may be updated due to changes in laws, policies, or security technologies. Any changes will be announced on the blog at least 7 days before implementation.

9. Other Information

• This blog does not have a membership registration feature and does not collect personally identifiable information such as email addresses or passwords.
• This policy will be updated when a comment feature is added.
• When clicking external links, the privacy policy of that site applies.