Effective date: September 24, 2026
What we do not collect
UUID values you generate on this site are never transmitted to our server. Generation happens entirely in your browser using the Web Crypto API (crypto.randomUUID() and crypto.getRandomValues()). No UUID you create here is stored, logged, or accessible to us.
Analytics
We use Google Tag Manager and Google Analytics to collect anonymous usage data: pages visited, approximate geographic region (country level), browser type, and session duration. This data is aggregated and does not identify individual users. No personally identifiable information is associated with analytics events.
You can opt out of Google Analytics tracking using the Google Analytics Opt-out Browser Add-on.
Country visitor tracking
When you visit the site, we record your country of origin (derived from your IP address via a third-party geolocation service, ipapi.co) and whether you spent more than 60 seconds on the site. This data is stored as aggregated country-level counts only — individual visits are not stored and IP addresses are not retained by us. See ipapi.co’s privacy policy for how they handle IP data.
Cookies and local storage
We do not set first-party cookies for tracking purposes. Google Analytics sets its own cookies (_ga, _gid) under the Google domain. We use sessionStorage (not localStorage) for within-session state only — this data does not persist after you close your browser tab and is never transmitted.
Third-party services
| Service | Purpose | Privacy policy |
|---|---|---|
| Google Analytics / GTM | Anonymous usage analytics | google.com/policies/privacy |
| ipapi.co | Country-level geolocation | ipapi.co/privacy |
| Vercel | Hosting and CDN | vercel.com/legal/privacy-policy |
Data retention
We do not store personal data. Aggregated country visit counts in our internal store contain no personally identifiable information and are retained indefinitely for usage analysis. Google Analytics data is retained according to Google’s standard retention settings.
Your rights
Because we do not collect personal data, there is nothing to request access to, correct, or delete on our side. For data held by Google Analytics, use Google’s My Activity tool or the opt-out add-on linked above.
Changes to this policy
We will update the effective date at the top of this page when material changes are made. Continued use of the site after changes constitutes acceptance.
More information
For more about UUIDDev, see the About page.