Privacy Policy

Who we are

QuarterCharts is operated by BLIP COMPANY LLC (Delaware, USA; hereafter QuarterCharts, we, us). This policy explains what data we collect, why, and your rights regarding it.

Contact: info@quartercharts.com

What we collect

QuarterCharts is designed to require minimal personal data. The categories below cover what we collect and why.

Aggregate analytics

We use Cloudflare Web Analytics — a privacy-respecting analytics beacon that does not use cookies and does not track individual visitors across sessions. We see aggregate page-view counts and Core Web Vitals (page-load performance metrics).

Error tracking

We use Sentry to capture client-side and server-side errors so we can fix bugs. Sentry collects browser type, OS, page URL, and the technical stack trace of an error. It does not collect form-input contents or user-typed text.

Authentication

If you sign in to a private feature (e.g. office dashboard), we use Google OAuth. We store your email address, your Google subject ID, and a session JWT in an HttpOnly cookie scoped to the.quartercharts.com domain. We never see your Google password.

Advertising

QuarterCharts may serve ads via Google AdSense. AdSense and other ad partners may use cookies or device identifiers to measure ad performance and personalize ads. You can opt out of personalized advertising via Google's Ad Settings or use the cookie-consent banner on our site to reject non-essential cookies.

What we don't collect

• We don't sell your data to third parties.
• We don't profile you across the open web.
• We don't use third-party trackers beyond the ones disclosed above.
• We don't store credit card numbers (no payments at the moment).

Cookies

Essential cookies: a session-authentication cookie set after Google OAuth (scoped to .quartercharts.com, HttpOnly, Secure, SameSite=Lax). This cookie is required for login and cannot be rejected.

Non-essential cookies: AdSense + measurement cookies set by third-party ad services. You can reject these via the cookie-consent banner.

Your rights (GDPR + CCPA)

You have the right to:

• Access the data we hold about you.
• Request correction or deletion.
• Withdraw consent for non-essential cookies at any time.
• Object to processing.
• Opt out of "sale" of personal data — we don't sell any, but you can confirm via this written policy.

Email info@quartercharts.com with subject "Privacy request" to exercise any of these rights. We respond within 30 days.

Data retention

Aggregate analytics: 90 days. Error logs (Sentry): 90 days. Account data (if signed in): retained for the lifetime of your account; deleted on request.

Source data attribution

Financial data shown on QuarterCharts is sourced from public filings on SEC EDGAR, Finnhub, Yahoo Finance, and similar public-domain sources. QuarterCharts is not affiliated with the SEC, exchange operators, or issuers.

Changes to this policy

When we update this policy, the "Last updated" date at the top changes and we post a brief summary on the homepage. Continued use of QuarterCharts after the change constitutes acceptance.