Cookie Policy

Last updated June 22, 2026

This Cookie Policy explains how CardRanks LLC (“CardRanks,” “we,” “us,” or “our”) uses cookies and similar technologies when you visit https://cardranks.app (the “Services”). It explains what these technologies are, why we use them, and the choices you have to control them.

1. What Are Cookies?

Cookies are small text files placed on your device (computer, phone, tablet) when you visit a website. They are widely used to make websites work efficiently, remember preferences, and provide information to the site owner. Similar technologies include web beacons, pixels, and local storage.

2. Why We Use Cookies

We use cookies and similar technologies for the following purposes:

  • Essential operation — to keep you signed in, remember your session, and securely deliver the Services. Without these, the Services cannot function.
  • Analytics — to understand how visitors use the Services, which features are popular, and where improvements are needed.
  • Error monitoring — to detect and diagnose issues so we can fix them quickly.
  • Preferences — to remember your settings (such as your active profile, theme, and notification preferences).

3. Types of Cookies We Use

3.1 Strictly Necessary Cookies

These cookies are essential for the Services to function. They cannot be turned off in our systems because the Services will not work without them.

  • Authentication cookies set by Supabase to keep you signed in and to protect your account from unauthorized access.
  • Security cookies set by Cloudflare to detect and mitigate bot traffic, DDoS attacks, and other security threats.
  • Session cookies set by our servers to manage your active session.

3.2 Analytics Cookies

These cookies help us understand how the Services are used so we can improve them.

  • PostHog — tracks page views, feature usage, and aggregate user behavior. PostHog uses your IP address to determine country-level location for analytics.

3.3 Error Monitoring Cookies

These cookies help us detect when something goes wrong so we can fix it.

  • Sentry — captures error events, browser and device info, and session metadata so we can debug crashes.

3.4 Preference Cookies

These cookies remember your choices to provide a better experience.

  • Active profile — when you have multiple sub-profiles, we remember which one you last used.
  • Theme — remembers your light/dark mode preference.
  • Notification settings — remembers your email/push notification choices.

4. Third-Party Cookies

Some cookies are placed by third parties that provide services on our behalf. We do not control these cookies directly. Third parties whose cookies may be set include:

Affiliate link tracking. CardRanks participates in the eBay Partner Network. When you click an affiliate link to eBay, eBay sets its own cookie to attribute the referral to us for a limited period (currently 24 hours) so we may earn a commission on qualifying purchases. That cookie is set by eBay on eBay’s own site under eBay’s privacy notice and is used for referral attribution — not to serve you advertising on our behalf. See our Privacy Policy for more detail.

5. We Do Not Use

  • Advertising cookies
  • Cross-site tracking cookies for behavioral advertising
  • Cookies that sell or share your data with marketing partners

6. Your Choices

You have several ways to manage cookies:

6.1 Browser Settings

Most browsers allow you to refuse or accept cookies through their settings. You can also delete cookies after they have been set. Note that disabling essential cookies will prevent the Services from functioning correctly (you will be unable to sign in).

For instructions on managing cookies in popular browsers:

6.2 Notification Preferences

For analytics and product-related communications, you can adjust your preferences in your /profile settings.

6.3 Do Not Track

Some browsers offer a “Do Not Track” setting. Because there is no industry standard for how websites should respond to Do Not Track signals, we do not currently respond to them. We do honor your choice when you opt out of analytics in your account settings.

7. Updates to This Cookie Policy

We may update this Cookie Policy from time to time to reflect changes in the cookies we use or for legal or regulatory reasons. When we make material changes, we will update the “Last updated” date at the top of this page.

8. Contact Us

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

CardRanks LLC
100 N Howard St. Ste. R
Spokane, WA 99201
United States
support@cardranks.app

Questions about this document? Email support@cardranks.app.