Privacy Policy
Last updated: October 15, 2026
NatDetec works without accounts or sign-up, and does not store test results. This policy explains the data NatDetec LLC (“NatDetec”, “we”, “us”) processes when you use https://natdetec.site.
1. Data controller
30 North Gould Street
Sheridan, WY 82801, USA
Phone : +1 (786) 791-2323
E-mail : [email protected]
2. Data processed
| Data | When | Purpose | Legal basis |
|---|---|---|---|
| Test result (NAT type, public addresses and ports) | During the test | Computed and shown only in your browser. It is never sent to NatDetec. | — |
| IP address and associated host name (reverse DNS lookup) | During the test | Show the address seen by the site and guess your internet provider. Not stored. | Performance of the service |
| IP address (hashed) | During the test and the contact form | Limit abuse (number of requests) | Legitimate interest (security) |
| Name, email and message | Contact form | Answer your request | Legitimate interest |
| Language (cookie) and theme (local storage) | When you choose a language or theme | Remember your preferences | Function requested by the user |
3. STUN servers and connection measurements
To measure your NAT, your browser sends small network requests (STUN protocol) to public servers run by Google and Cloudflare. They receive your public IP address, as with any internet connection, and process it under their own privacy policies. No other data is sent to them.
After the NAT test, your browser also measures latency (small requests to Amazon Web Services data centres) and speed (data downloaded then uploaded to Cloudflare, or to our server if Cloudflare cannot be reached). These services receive your IP address; the measurements are computed in your browser and are not stored by NatDetec.
4. Retention
- Rate-limiting data (hashed IP address): 24 hours at most.
- Hosting technical logs: depending on its configuration, 30 days at most.
- Contact messages: as long as needed to reply.
- Language cookie: 12 months. Theme: until you clear it.
5. Recipients
- Our hosting provider (hosting of the site, sending of emails).
- Google and Cloudflare (STUN servers and speed test, see section 3), Amazon Web Services (latency measurement), and Google Fonts (typefaces).
Our company and these providers are based in the United States. Transfers from the European Union rely on the mechanisms provided by the GDPR (Data Privacy Framework where the provider is certified, or standard contractual clauses).
6. Your rights
Depending on where you live (including the GDPR in the EU/EEA and the UK, and the CCPA/CPRA in California), you have the right to access, correct, delete, restrict, object to and port your data. To exercise them, write to [email protected]. You may lodge a complaint with your data protection authority. We do not sell or share personal information.
7. Changes
We may update this policy; the last-updated date is shown at the top of the page.