Privacy, without a tracking pitch.

Your local notebook

The four planners, whole-trip data calculator and route selector run in your browser. Plan inputs, room and network labels and local connection records are not submitted as a form to the site. You can explicitly save reports in browser storage, restore or clear them, and download JSON or calendar files. Preflight also keeps a short browser-local cooldown. Clearing site data removes these local records; downloads remain wherever you saved them. There are no accounts, contact-detail forms, analytics cookies or third-party tracking scripts.

Optional Work Call Preflight

Only when you consent and press Start does your browser send requests to this site’s first-party connection-test endpoint on its Seoul host. A complete run makes five short HTTP response observations, downloads 1,048,576 bytes and uploads 524,288 bytes of generated test data, plus protocol overhead. Cancel stops the active request, but already transferred data still counts. The service necessarily sees connection metadata such as your IP address and temporarily uses it in memory for request limits; test bodies are consumed and discarded. Endpoint access logging is disabled. These observations are about that HTTP path, not a Zoom, Teams or Meet connection, and no call-quality guarantee follows.

Optional map requests

If you choose the external basemap, your browser requests tiles from OpenStreetMap. That provider receives the request and your IP address. The geographic fallback and regional reading list do not require those tile requests.

Hosting and external sources

Other hosting components may keep operational or error logs under their own configuration. Server analytics and Search Console are not implemented or connected here. Following an external source or licence link takes you to a site with its own privacy practices.