Privacy
What this site learns about you, and what it does not.
- Accounts
- None
- Ads
- None
- Cookies of our own
- None
- A checked spot is rounded to
- 36ft
What our server sees
Windhorse has no accounts, no ads and no visitor tracking.
Most of what the site does happens in your browser. This page says what leaves your browser, where it goes and what stays on your device.
Like any website, our server and the network that delivers it (Cloudflare) receive your IP address, the address of the page you ask for, the time and your browser's description of itself. These records are used to keep the site running and to stop abuse. We do not build visitor profiles from them, and we do not sell or share them.
The site sets no cookies of its own and runs no analytics script. Cloudflare may set a short-lived security cookie when it checks whether a request comes from a person or a program.
The site search sends the words you type to our server, as any site search does.
- Questions
- support@windhorse.aero
- Last updated
- November 13, 2026
What a “Can I fly here?” check sends
A check runs in your browser.
Your browser asks public U.S. data services directly. Each of them receives the coordinates of the spot you asked about, rounded to four decimal places (about 36 feet), together with what every website receives: your IP address and your browser's description. For the map, two of them also receive the corners of the area drawn around the spot.
Our own server is not told the spot. From us your browser fetches only the program, our rule and drone tables and a copy of the FAA's list of temporary flight restrictions: the same files for every visitor. To find a place by name or ZIP code, your browser downloads the part of our place index that matches the first two characters you typed. The rest of what you type stays in your browser.
The seven services, and what each one is asked:
- Federal Aviation Administration, open dataservices6.arcgis.com, hosted for the FAA by EsriAirspace classes, the LAANC grid heights of the UAS Facility Maps, special-use airspace, national security restrictions, airports and stadiums around the spot.
- Stadium event schedule and National Park Service boundariesservices1.arcgis.com, hosted by EsriWhether a stadium near the spot has an event in the coming hours, and whether the spot lies in a national park unit. The stadium request also carries the current hour.
- Protected Areas Database of the United StatesU.S. Geological Survey data on services.arcgis.com, hosted by EsriWho manages the land at the spot.
- U.S. Census Bureau, TIGERwebtigerweb.geo.census.govThe state, county and town of the spot, and the roads, water and town names for the map.
- National Weather Serviceapi.weather.govThe forecast for the spot.
- NOAA Space Weather Prediction Centerservices.swpc.noaa.govThe Kp index. This request carries no location.
- U.S. Geological Survey, elevation serviceepqs.nationalmap.govThe ground height at the spot.
These services belong to U.S. government agencies and their hosting provider and keep their own records under their own policies. We do not control them.
Your location
“Use my location” asks your browser for your position only when you press it, never when a page loads.
The position is rounded and used for that one check, in the same way as a place you type. It is not sent to our server. It is kept on your device only if you save the spot.
What stays on your device
Your browser keeps three things for this site: the light or dark theme if you chose one, the rule book you chose (Recreational or Part 107), and the spots you save, up to eight, each with its label, rounded coordinates, drone and rule book.
They are kept in your browser's storage for this site and never sent to us. Removing a saved spot deletes it. Clearing this site's data in your browser removes everything.
Links to a check
A link copied from a check carries the spot's coordinates, the drone and the rule book after the # sign.
Browsers do not send that part of an address to a server, so we do not receive it. Opening such a link runs a check of that spot at once. Anyone you give the link to can see the spot.
If you write to support@windhorse.aero, we use your address and your message only to answer you.
Changes
When what the site sends or stores changes, this page changes with it.
Last updated: November 13, 2026.
Photos: DJI press images.