Privacy Policy
Effective date: November 1, 2026
This policy applies to the DukiChoi website at https://dukichoi.github.io/. External websites and downloaded applications have their own privacy practices; please consult their respective notices.
Information collected directly by the operator
The website currently has no account registration, visitor information forms, or custom mechanism for collecting and storing visitors’ IP addresses. It does not use a separate visitor analytics tool. Learning simulator inputs and calculations are processed in your browser; the simulators do not send those inputs to an operator-controlled server.
Hosting and external service providers may nevertheless process connection information as described below.
GitHub Pages hosting
GitHub Pages hosts this website. GitHub states that it logs and stores visitors’ IP addresses for security purposes, regardless of whether they are signed in. This is separate from any custom collection by the website operator. GitHub determines its processing and retention practices.
Google AdSense and advertising
The website includes Google AdSense code. Advertising scripts may load even when no advertisement is displayed. Google and third-party advertising providers may use cookies, web beacons, IP addresses, browser and device information, and other identifiers to deliver and measure advertising and prevent abuse.
Third-party vendors, including Google, may serve ads based on your prior visits to this or other websites. Google’s advertising cookies enable Google and its partners to serve personalized ads based on those visits. Actual processing and retention depend on the providers’ policies and your settings.
- How Google uses information from partner sites and apps
- Google Privacy Policy
- Manage personalized advertising with My Ad Center
- Opt out of personalized advertising from participating providers
External resources and program information
Some scripts and icons load from Cloudflare’s cdnjs service. The program catalog may load from duki-programming.github.io, and some download information may load from the GitHub API. These requests may transmit information needed for communication, such as your IP address, request URL, and browser information, to the relevant provider.
When you follow an external link, consult that website’s privacy policy.
Browser storage and your choices
The website uses localStorage for your theme preference and a cache of program release information. It uses sessionStorage for program card display styles. These values are stored in your browser; the website code does not send them to a separate collection server. Release information is reused for five minutes, which does not mean it is automatically deleted after five minutes. You can remove localStorage through your browser’s site data settings. sessionStorage is removed when the relevant tab session ends.
Advertising providers may separately use cookies or other storage technologies. You can restrict cookies or delete site data in your browser settings, which may affect features or advertising. Opting out of personalized advertising does not remove all ads.
Contact and changes
The website operator is DukiChoi. For privacy inquiries, use the website repository’s GitHub Issues. Issues are public: do not post personal information such as IP addresses or contact details.
This policy and its effective date will be updated when website features or external service usage change.