Legal

Cookie Policy

Last updated:

QuantumComputingCourses.com is operated by Hadamard LLC. This Cookie Policy explains what cookies are, which cookies we use, and how you can control them.

What Are Cookies?

Cookies are small text files stored on your device when you visit a website. They help websites remember your preferences, track usage, and enable certain functionality.

Cookies We Use

Strictly Necessary Cookies

These cookies are required for the Site to function and cannot be disabled.

  • cookie-consent: stores your cookie consent preference. Expires: 1 year.
  • theme: stores your light/dark mode preference. Expires: 1 year.

Analytics Cookies (with consent — not loaded until you accept)

Analytics cookies are not loaded until you explicitly accept non-essential cookies in our consent banner. If you decline, no analytics cookies are set and no analytics data is collected during your visit. With your consent, we use Google Analytics / Firebase Analytics to understand how visitors use the Site.

  • _ga, _ga_*: Google Analytics identifiers used to distinguish users. Expires: 2 years.
  • _gid: Google Analytics session identifier. Expires: 24 hours.

Affiliate Tracking Cookies (third-party)

When you click an affiliate link, our affiliate partners may set cookies on your device. These are set by third parties and governed by their own cookie policies.

  • Impact (Coursera, edX, Udemy, Brilliant): tracks referrals for commission. Typically expires: 30 days.
  • Amazon Associates: tracks referrals for book commissions. Typically expires: 24 hours.

Managing Cookies

You can control cookies in several ways:

  • Our consent banner: decline non-essential cookies when prompted on your first visit, or clear your cookies to reset your preference.
  • Browser settings: most browsers allow you to block or delete cookies. Note that blocking all cookies may affect site functionality.
  • Opt-out tools: opt out of Google Analytics at tools.google.com/dlpage/gaoptout.

Other Storage Technologies

In addition to cookies, we may use browser localStorage and sessionStorage to store your preferences (such as theme selection and cookie consent status). This data is stored locally on your device and is not transmitted to our servers. You can clear this data through your browser's developer tools or by clearing site data.

Changes to This Policy

We may update this Cookie Policy. The "Last updated" date reflects the most recent revision.

Contact

Questions about our use of cookies? Contact Hadamard LLC at info@quantumcomputingcourses.com.