Privacy

Last updated: October 31, 2026.

Your replay stays in the browser

Lag Arena computes simulated movement and packet delivery in browser memory. It does not ask for your identity, real connection measurements, files, camera, microphone or location. There is no application account or remote replay database.

Sharing is your choice

Copy replay link puts the simulation settings, seed and movement sequence in the URL fragment, after the # symbol. The fragment is not part of the normal HTTP request to the host. Anyone who receives the full link can read and replay it. Browser history, synced history or messaging services may retain a link you share.

Hosting and local files

The hosting provider receives ordinary request metadata needed to deliver the website, such as an IP address and browser request headers, and may process operational logs under its own policies. The application does not add analytics, advertising scripts, tracking cookies or third-party font requests. Download replay creates a JSON file on your device.

Clipboard

The copy button requests a clipboard write only after you click it. If that is unavailable, the website shows the link for manual copying.

Changes and questions

If analytics, ads or online storage are introduced later, this notice must be updated before those features are enabled. See Contact for the current feedback method.