Cookie Policy
Last updated: March 2, 2026
1. What Are Cookies
Cookies are small text files stored on your device by your web browser. Local storage is a similar browser technology that allows websites to store data locally. We use both to make Chord Library function properly.
2. Cookies and Storage We Use
| Name | Type | Purpose | Duration | Essential |
|---|---|---|---|---|
sb-*-auth-token | Cookie | Maintains your sign-in session via Supabase authentication | Session / persistent | Yes |
theme | localStorage | Remembers your dark/light mode preference | Persistent | Yes |
auth_return_to | localStorage | Redirects you to the correct page after sign-in | Temporary | Yes |
| Ahrefs Web Analytics | Script (cookieless) | Cookieless site analytics — does not collect personal data or use cookies | N/A | Yes |
3. Essential vs Non-Essential
All cookies and local storage items listed above are essential for the site to function correctly — for example, keeping you signed in and remembering your theme preference. These do not require your consent under EU law.
We do not use any non-essential cookies. Our analytics provider (Ahrefs Web Analytics) is fully cookieless and does not collect personal data, so it does not require consent.
4. Manage Your Preferences
You can manage cookies through your browser settings. Most browsers allow you to view, delete, and block cookies. Note that blocking essential cookies may prevent parts of the site from working correctly.
5. Changes to This Policy
We may update this Cookie Policy from time to time. The "Last updated" date at the top reflects the most recent revision.
6. Contact
For questions about cookies or this policy:
contact page
For full details on how we handle your personal data, see our Privacy Policy.