1. Introduction
This Privacy Policy explains how an individual ("Operator", "I", "me") collects, uses, stores, and protects personal information when providing this website ("Service").
This Service complies with:
- Personal Information Protection Act (PIPA) of the Republic of Korea,
- Act on Promotion of Information and Communications Network Utilization (Network Act),
- and all relevant Korean laws and regulations.
This policy applies to all Users ("you") who access or use the Service.
2. Personal Information Collected
The Service collects only the minimum amount of information necessary to operate securely and function properly.
2.1 Automatically collected information
When you visit the Service, your browser and hosting platform may automatically transmit technical data such as:
- IP address (temporarily visible in hosting logs)
- Browser type, version, and language
- Device type, operating system
- Access time, pages viewed, and referrer information
- Cookies essential for functionality
- Basic error logs (for security and debugging)
This information is used solely for maintaining and securing the Service.
I do not use this information to personally identify Users.
2.2 Information you voluntarily provide
The Service does not require sign-up, login, payment, or personal profile creation.
However, you may voluntarily provide:
- vocabulary data entered manually,
- imported JSON/CSV/TSV files,
- text you input into any field,
- email address if you send me an inquiry at support@ey.io.kr.
2.3 Information NOT collected
This Service does not collect or request:
- name, phone number, physical address
- resident registration number
- payment or transaction data
- location tracking or GPS information
- biometrics or sensitive categories (religion, health, politics, etc.)
- advertising IDs
- user behavior tracking systems (e.g., Google Analytics, Meta Pixel)
3. How Personal Information Is Used
Personal information is used only for the following purposes:
3.1 Service operation
To ensure site functionality, display pages, and maintain basic features.
3.2 Security & stability
- preventing hacking or abnormal access
- analyzing error logs
- preventing spam or misuse of the Service
3.3 Improvement
- debugging issues
- improving user experience
- updating simple functions
3.4 Communication
If you send an email inquiry, your email address will be used only to respond to you.
The Service does not use personal information for:
- advertising
- marketing
- behavioral tracking
- automated decision-making
- sharing with external companies
4. LocalStorage and Cookie Usage
4.1 LocalStorage
The Service uses LocalStorage to save:
- vocabulary lists,
- search configurations,
- imported data,
- user preferences.
Important notes:
- LocalStorage data is stored only on your own device.
- I cannot access, view, track, or recover LocalStorage contents.
- Clearing browser data, switching devices, or using private mode will delete your data.
- You are responsible for exporting backups via the built-in Export function.
4.2 Cookies
Only essential cookies are used (for styling, language display, or UI behavior).
This Service does not use tracking or marketing cookies.
5. Third-Party Data Sharing
I do not share, sell, or provide personal information to third parties.
However, certain technical data may be handled automatically through:
- GitHub Pages, which hosts the website
- Browser vendors (Chrome, Safari, Edge, Firefox)
- Email service providers (if you email me)
These platforms have their own privacy policies.
No personal information is shared beyond what is technically necessary to operate the website.
6. Legal Basis for Processing
Under Korean law, personal information is processed based on:
- User consent (when voluntarily providing email or text inputs)
- Legitimate interest (security, error analysis, service improvement)
- Technical necessity (cookies, access logs)
7. Retention and Deletion of Personal Information
7.1 Automatically collected information
Hosting logs containing IP addresses and error data may be stored for up to 1 year, as required for security and system management.
7.2 Emails
If you contact me, your message may be retained only until the inquiry is resolved.
After resolution, emails may be deleted unless required by law.
7.3 LocalStorage
- Stored indefinitely on your device
- Deleted only when you clear browser data
- Never accessible to the Operator
8. User Rights
Under Korean Personal Information Protection Act, you have the right to:
- request access to personal data (if I hold any),
- request correction or deletion,
- request suspension of processing.
Because most data is stored on your device, you must directly delete LocalStorage items via browser settings.
You may exercise rights by contacting:
📧 support@ey.io.kr
9. Protection of Minors
The Service is not intended for children under the age of 14.
I do not knowingly collect personal information from minors.
If such data is found, it will be deleted immediately.
10. Data Security Measures
The Operator takes reasonable steps to protect your information, such as:
- secure hosting (HTTPS),
- minimal data collection,
- technical monitoring for abnormal access,
- internal access control (since the site is individually operated),
- keeping hosting environments updated.
However:
- no system is 100% secure, and
- Users must protect their own devices and browsers from malware or unauthorized access.
11. International Data Transfers
The Service is hosted on GitHub Pages, which may store log data on servers located outside Korea.
These transfers occur only because of the hosting platform's technical infrastructure.
The Operator does not voluntarily transfer personal data overseas.
12. Third-Party Links
The Service may include external links (e.g., GitHub, email client).
Each external website has its own privacy policy, and the Operator is not responsible for how those websites handle data.
13. Changes to This Privacy Policy
This Privacy Policy may be updated occasionally due to:
- legal updates,
- service improvements,
- hosting platform changes.
Updated policies take effect immediately upon posting.
Continued use of the Service means you agree to the updated Policy.
14. Contact Information
For questions or requests regarding privacy: support@ey.io.kr