Home / Cookies
Cookie Policy
Essential local storage (ours)
| Key | Purpose | Duration |
|---|---|---|
| n9-theme | Remembers light/dark theme | Until cleared |
| n9-cookie | Remembers your cookie choice | Until cleared |
| n9-recent | Your last six checked numbers, on this device only | Until cleared |
Advertising cookies (Google)
Google AdSense and its partners may set cookies or use similar technologies to show and measure ads, limit repetition and prevent fraud, and — with consent where required — personalise ads. Manage personalisation at Google Ads Settings and learn more in Google's advertising policy.
Your controls
Choose “Essential only” on our banner, block third-party cookies in your browser, or clear site data at any time. Blocking cookies will not break our tools.