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Last updated: February 16, 2026

Cookie Policy

1. What are Cookies?

Cookies are small text files that websites store on your device (computer, tablet, smartphone) when you visit them. They are used to remember your preferences, improve your experience, and analyze how you interact with the site.

2. Types of Cookies We Use

2.1. Essential Cookies (Required)

These cookies are necessary for the website to function properly. They do not require your consent under GDPR.

  • Authentication: Keep you logged in
  • Session: Maintain your session state
  • Theme preference: Remember dark/light mode
  • Language preference: Remember your chosen language
  • Cookie consent: Store your cookie preferences

2.2. Analytics Cookies (Optional)

These cookies help us understand how users interact with our service via Google Analytics and Vercel Analytics. They require your consent.

  • Page views and navigation patterns (Google Analytics)
  • Time spent on pages and performance metrics (Vercel Analytics)
  • Error reporting and user interactions
  • Anonymized usage statistics

3. Legal Basis for Each Category

Essential Cookies

Legal basis: Legitimate Interest / Contract Performance (Art. 6(1)(b)(f) GDPR). Strictly necessary — no consent required.

Analytics Cookies

Legal basis: Consent (Art. 6(1)(a) GDPR). Only activated after you explicitly accept via the cookie banner.

3. Detailed Cookie List

NameTypePurposeDuration
better-auth.session_tokenEssentialUser authentication session7 days
NEXT_LOCALEEssentialLanguage preference1 year
themeEssentialDark/light mode preferencePersistent
cookie-consentEssentialCookie preferences1 year
_gaAnalyticsDistinguishes unique users across sessions — Google Analytics (Google LLC)2 years
_gidAnalyticsDistinguishes individual sessions — Google Analytics (Google LLC)24 hours
_ga_[ID]AnalyticsMaintains Google Analytics 4 session state — Google Analytics 4 (Google LLC)2 years

4. How to Manage Cookies

4.1. Cookie Consent Banner

When you first visit our site, a cookie banner appears where you can:

  • Accept all: Enable all cookies
  • Reject all: Only essential cookies
  • Customize: Choose which types to enable

4.2. Browser Settings

You can also manage cookies directly in your browser:

Chrome

Settings → Privacy and security → Cookies

Firefox

Preferences → Privacy & Security → Cookies

Safari

Preferences → Privacy → Cookies

Edge

Settings → Privacy → Cookies

4.3. When Are Cookies Set?

Essential cookies are set automatically as they are strictly necessary for the site to function. Analytics cookies (Google Analytics, Vercel Analytics) are only loaded after you have explicitly accepted them via the consent banner. No analytics or tracking data is collected before your consent.

4.4. Withdrawing Consent

You can withdraw or update your cookie preferences at any time by reopening the cookie preferences panel from the footer, or by contacting us at info@sellb.io. Withdrawing consent does not affect the lawfulness of processing that took place before withdrawal.

5. Third-Party Services

We use third-party services that may set their own cookies:

Analytics Services

Google Analytics (Google LLC) and Vercel Analytics track how visitors interact with our site and may set their own cookies.

Email & Form Services

Resend (resend.com) handles our transactional emails. Contact forms may be processed via Formspree. Both services have their own privacy policies.

Resend Privacy Policy

Authentication Providers

Authentication is managed by better-auth (self-hosted, first-party). If you sign in via Google or other OAuth providers, those providers may set their own cookies per their privacy policies.

6. International Data Transfers

Google Analytics is operated by Google LLC, headquartered in the United States. By accepting analytics cookies, your data may be transferred to and processed in the USA. This transfer is carried out under the EU–US Data Privacy Framework and/or Standard Contractual Clauses (SCCs). For more details, see Google's Privacy Policy.

7. Rights for California Residents (CCPA / CPRA)

If you are a California resident, you have the following rights under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA):

  • Right to Know — Request information about the personal data we collect, use, and disclose.
  • Right to Delete — Request deletion of your personal data.
  • Right to Correct — Request correction of inaccurate personal data.
  • Right to Opt-Out — Opt out of the sale or sharing of your personal information.

We do not sell or share your personal information with third parties for their own commercial purposes.

To exercise any of these rights, contact us at info@sellb.io. We will respond within 45 calendar days as required by law.

We will not discriminate against you for exercising any of these rights.

Need More Information?

For more details about how we handle your data, see our Privacy Policy.