Cookie Policy

Last updated: December 28, 2025

This Cookie Policy explains how DNArcade ("we," "us," or "our") uses cookies and similar technologies when you visit our website. This policy should be read alongside our Privacy Policy.

1. What Are Cookies?

Cookies are small text files that are stored on your device (computer, tablet, or mobile phone) when you visit a website. They are widely used to make websites work more efficiently and provide information to the website owners.

Cookies can be "persistent" (remaining on your device until deleted or expired) or "session" (deleted when you close your browser).

2. How We Use Cookies

We use cookies for the following purposes:

2.1 Essential Cookies

These cookies are necessary for the website to function properly. They enable core functionality such as security, authentication, and accessibility.

Cookie NamePurposeDuration
__clerk_db_jwtAuthentication sessionSession
__client_uatUser authentication token1 year
__sessionSession managementSession

2.2 Functional Cookies

These cookies enable enhanced functionality and personalization, such as remembering your preferences and settings.

Cookie NamePurposeDuration
theme_preferenceRemembers display preferences1 year
cookie_consentStores your cookie preferences1 year

2.3 Analytics Cookies

These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously.

Cookie NamePurposeDuration
_vercel_insightsWebsite analyticsSession

3. Third-Party Cookies

Some cookies are placed by third-party services that appear on our pages:

3.1 Clerk (Authentication)

We use Clerk for user authentication. Clerk may set cookies to manage your login session. For more information, see Clerk's Privacy Policy.

3.2 PayPal (Payments)

When you make a payment, PayPal may set cookies for fraud prevention and transaction processing. For more information, see PayPal's Privacy Policy.

3.3 Vercel (Hosting)

Our website is hosted on Vercel, which may use cookies for performance optimization and analytics. For more information, see Vercel's Privacy Policy.

4. Managing Cookies

4.1 Browser Settings

Most web browsers allow you to control cookies through their settings. You can:

  • View what cookies are stored on your device
  • Delete all or specific cookies
  • Block cookies from specific or all websites
  • Set preferences for first-party vs. third-party cookies
Disabling essential cookies may prevent you from using certain features of DNArcade, such as logging in or uploading DNA data.

4.2 Browser-Specific Instructions

4.3 Opt-Out Tools

You can also use industry opt-out tools to manage advertising cookies:

5. Similar Technologies

5.1 Local Storage

We may use browser local storage to store preferences and improve performance. Unlike cookies, local storage data doesn't expire automatically but can be cleared through your browser settings.

5.2 Session Storage

Session storage is similar to local storage but is cleared when you close your browser tab. We use this for temporary data during your session.

6. Updates to This Policy

We may update this Cookie Policy from time to time to reflect changes in our practices or for other operational, legal, or regulatory reasons. The "Last updated" date at the top indicates when this policy was last revised.

7. Contact Us

If you have questions about our use of cookies, please contact us: