Cookie Policy
Last updated: April 5, 2026
Overview
NitroVIN uses a small number of first-party cookies and browser local storage entries to operate the site and understand how it is used. We also use Google AdSense to display advertisements, which may set third-party cookies on your device. Our own cookies are described below; Google's cookies are governed by Google's privacy policies.
Cookies (server-set)
The following cookies are set by our server. They are HTTP-only — they cannot be read by JavaScript and are not accessible to any third-party scripts running on this page.
| Cookie | Purpose | Expires |
|---|---|---|
| nv_sid | A random session identifier that links your home page visit to any subsequent VIN search in the same session. Used to measure conversion rates (how often visitors perform a search). Contains no personal information. | 30 days |
| nv_utm | Stores UTM marketing parameters (source, medium, campaign) if they are present in the URL when you first arrive. Used to understand which marketing channels drive searches. Only set if UTM parameters are present in your landing URL. | 30 days |
| nv_auth | An authentication token that keeps you signed in to your NitroVIN account. Only set when you log in. Deleting this cookie will sign you out. | 30 days |
Local storage (browser-side only)
The following values are stored in your browser's local storage. This data never leaves your device and is not transmitted to our servers.
| Key | Purpose | Expires |
|---|---|---|
| theme | Remembers your dark or light mode preference | Until cleared |
| cookie-consent | Records that you have acknowledged this notice | Until cleared |
Third-party services
NitroVIN retrieves vehicle data from the NHTSA vPIC API, a free public API operated by the US National Highway Traffic Safety Administration. Your VIN search query is sent to NHTSA's servers to retrieve vehicle information. No personally identifiable information is included in that request.
Google AdSense
We use Google AdSense to display advertisements on some pages of the Service. AdSense may set cookies on your device to serve ads, measure ad performance, and personalise ads based on your browsing history across other websites. These cookies are set by Google, not by NitroVIN, and are outside our control. Signed-in Premium and Admin users do not see ads and are not subject to AdSense cookies from NitroVIN.
You can learn more about how Google uses data at policies.google.com/technologies/partner-sites. You can opt out of personalised ads via Google Ad Settings or aboutads.info.
Your choices
You can delete cookies and clear local storage at any time through your browser's settings or developer tools. Deleting nv_sid will cause a new session to be created on your next visit.
Contact
Questions about this policy? Contact us at contact@nitrovin.com.