Last updated 14 November 2026
TailNav sets one cookie, to keep you signed in. Everything else is stored in your own browser, mainly so the map remembers how you like it. We don't use advertising cookies, cross-site tracking or third-party analytics.
Your choices are saved in this browser.
| Name | Type | Purpose | Category | Expires |
|---|---|---|---|---|
tn_s | Cookie | Keeps you signed in. Can't be read by scripts. | Essential | 30 days, or when you sign out |
tn-consent | Local storage | Remembers your cookie settings | Essential | Until you clear it |
opt-* | Local storage | Map style, brightness, labels, icon size and other map settings | Preferences | Until you clear it |
tn-units, tn-filters, tn-bookmarks | Local storage | Units, map filters and bookmarked flights | Preferences | Until you clear it |
w-*, flight-tab | Local storage | Which widgets and panel tabs are open | Preferences | Until you clear it |
tn-currency | Local storage | Currency for hardware prices | Preferences | Until you clear it |
tn-ref | Session storage | Remembers the invite link you followed, so the person who invited you gets credit when you sign up | Essential | When you close the tab |
tn-viewer | Session storage | Random code for the anonymous "Most tracked" count | Statistics | When you close the tab |
Maps and photos are loaded straight from other services: OpenStreetMap, Esri, Planespotters.net, Wikimedia Commons and avs.io. They don't set cookies through our pages, but they do receive your IP address when your browser fetches from them. See the privacy policy.
You can also block or delete cookies and site data in your browser's settings. If you block the tn_s cookie you won't be able to sign in.
Email privacy@tailnav.com.