Cookie Policy
Last updated: May 26, 2026
Blockchain Explorer uses a small number of cookies and similar technologies. Public (unauthenticated) verification lookups set no cookies at all. This page lists every cookie that may be set for authenticated users.
Essential cookies (always on)
Required for Blockchain Explorer to work when signed in. You cannot opt out of these and stay signed in. Public lookups without an account set none of these cookies.
| Name | Purpose | Lifetime |
|---|---|---|
| better-auth.session_token | Authenticated session. HttpOnly + Secure + SameSite=Lax. | 7 days, refreshed daily |
| better-auth.csrf_token | CSRF protection for state-changing requests. | Session |
| mat-cookie-consent | Stores your choice on the cookie banner so we don't re-prompt. | 1 year (localStorage) |
Optional cookies (opt-in)
These are only set if you click Accept all on the cookie banner. Clicking Reject skips them entirely.
| Provider | Purpose | Lifetime |
|---|---|---|
| Sentry | Error tracking and session replay — helps us diagnose and fix crashes. No advertising use. Data processed under Sentry's EU data sub-processor agreement. | Session / up to 90 days |
We do not use any advertising, profiling, or third-party product analytics cookies. If we add further optional services in future we will update this page and re-prompt for consent.
Changing your choice
Clear your browser's site data for blockchain.myaviationtools.com (or just the mat-cookie-consent key in localStorage) and the consent banner will appear again on your next visit.
More info
For broader privacy questions, see our Privacy Policy. For anything else, email [email protected].