Cookie notice

Necessary storage for choices, sessions and abuse prevention.

This notice covers cryptanio.com and account.cryptanio.com. Last updated 15 September 2026.

No analytics or advertising cookies.

Cryptanio uses only the storage listed below for privacy choices, account sessions and service security. Optional language storage remains off until you allow it.

If analytics or advertising cookies are added later, Cryptanio will ask again before activating them.

NameCategory and purposeLifetime
cryptanio_consentNecessary cookie. Records the consent version, your optional preference choice, timestamp and Global Privacy Control signal.180 days
cryptanio_localePreference cookie. Remembers the language you selected. Set only with permission.Up to 365 days
cryptanio_sessionNecessary account cookie. Keeps an authenticated account session. It is HttpOnly and is not available to page scripts.Up to 30 days
cryptanio_oauth_stateNecessary account cookie. Protects a sign-in through an external identity provider from request forgery.10 minutes
cryptanio_user_mark and cryptanio:user-mark-idNecessary security cookie and local storage. Hold the same random pseudonymous browser identifier. The server stores only its cryptographic hash and may retain the history of accounts used in that browser to detect abuse and multiple-account misuse. It is not a login credential and Cryptanio does not derive a browser fingerprint from it.365 days after last use
cryptanio:guard-session-idNecessary session storage. Binds a one-time security check to the current browser tab.Until the tab is closed

Cloudflare Turnstile loads only when a protected action needs it.

When shown, Turnstile may receive your IP address, user agent, origin and technical connection or browser signals to distinguish people from automated traffic. Cryptanio does not send the contents of account forms to Turnstile.

Cloudflare may process this information internationally under its own privacy terms. Blocking the check may prevent the protected action from completing.

Change optional choices at any time.

Use “Privacy choices” in the footer to reopen settings. Necessary account and security storage cannot be disabled through this preference control because the related features cannot work safely without it.

Questions: hello@cryptanio.com.