Privacy Policy

Last Updated: 21/2/2026

At Khóa học IT, we are committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our website.

Information We Collect

Our website is designed with privacy in mind. We collect minimal information and store all user data locally on your device.

Local Storage (IndexedDB)

We use IndexedDB, a browser-based database, to store the following information locally on your device:

• Enrolled Courses: A list of courses you have enrolled in, stored with course IDs and enrollment timestamps
• Wishlist: Courses you have added to your wishlist for future reference
• Learning Progress: Your progress through course lectures, including completion status and video playback positions
• Theme Preference: Your choice of light or dark mode for the website interface
• Language Preference: Your preferred language (English or Vietnamese) for course content

Important: All this data is stored exclusively on your device. We do not have access to this information, and it is not transmitted to our servers or any third parties.

Automatically Collected Information

When you visit our website, our hosting provider (Cloudflare) may automatically collect certain technical information, including:

• IP address
• Browser type and version
• Operating system
• Pages visited and time spent on pages
• Referring website

This information is collected for security, performance monitoring, and analytics purposes.

How We Use Your Information

The locally stored data in IndexedDB is used solely to:

• Remember your enrolled courses and learning progress
• Save your wishlist for future reference
• Maintain your theme and language preferences
• Resume video playback from where you left off
• Provide a personalized learning experience

Since this data never leaves your device, we cannot use it for any other purpose.

Data Storage and Security

All your personal data is stored locally in your browser's IndexedDB. This means:

• Your data remains on your device and is not sent to our servers
• You have complete control over your data and can clear it at any time through your browser settings
• Your data is isolated to your browser and device - it will not sync across different devices or browsers
• If you clear your browser data or use private/incognito mode, your learning progress and preferences will be lost

Cookies

Our website does not use cookies for tracking or advertising purposes. We only use essential browser storage (localStorage and IndexedDB) to provide core functionality.

Third-Party Services

Our website is hosted on Cloudflare Workers. Cloudflare may collect technical information as described in their privacy policy. We recommend reviewing Cloudflare's Privacy Policy for more information.

Course videos may be embedded from third-party platforms. When you watch a video, you may be subject to the privacy policies of those platforms.

Your Rights and Choices

Since all your data is stored locally on your device, you have complete control:

• Access: You can view your data through your browser's developer tools (IndexedDB section)
• Delete: You can clear all your data by clearing your browser's site data or IndexedDB storage
• Export: You can export your data using browser developer tools if needed

Children's Privacy

Our website is intended for general audiences. We do not knowingly collect personal information from children under 13. Since we do not collect or store personal information on our servers, we cannot identify the age of our users.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date.

Contact Us

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

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