Privacy
Privacy Policy
Short version: progress stays in your browser, and this build does not run analytics or ad scripts.
Completion progress
If you mark a code as completed, the site stores the entry IDs in your browser's local storage under the key mw4-stranded-completed:v1. This data stays on your device. It is not sent to a server, and it does not sync across browsers or devices. Clearing site data will remove it.
Search and filters
Search and type filters run entirely in your browser. The text you type is not sent to this site's server as a search query.
Analytics, ads, and cookies
This P0 build does not include analytics, advertising, or cookie-based tracking scripts. If a future version adds them, this page and any required consent mechanism will be updated first.
Hosting logs
The hosting provider or CDN may process standard request logs (for example, IP address, user agent, and requested URL) to operate and protect the site. Those logs are controlled by the hosting provider's own policies.
Contact
If you send a correction by email, we receive the information you choose to include, such as your email address and the details of the issue. Please do not send account credentials or other sensitive information. See the contact page for details.