Cookies Policy
Last Updated: September 24, 2026
This Cookies Policy explains how the SwiftQuantum websites and web apps (swiftquantum.tech and its subdomains, including quantumnative-edu.swiftquantum.tech and legal.swiftquantum.tech) use cookies and similar local-storage technologies. Native iOS / macOS / visionOS apps in the SwiftQuantum ecosystem do not use web cookies; they use platform keychain and on-device storage governed by the Privacy Policy.
What is a cookie?
A cookie is a small text file that a website stores in your browser to
remember information between visits. "Similar technologies" include
localStorage, sessionStorage, and IndexedDB.
Our cookie posture
We keep this short. We use cookies to keep you signed in and to remember your language, plus one first-party cookie that tells us which of our posts brought you here. We do not set advertising or cross-site tracking cookies, and we do not use a third-party analytics service.
Cookies we use
1. Strictly necessary
The sites cannot work without these, so they cannot be switched off.
| Cookie / Key | Purpose | Lifetime |
|---|---|---|
sq_access, sq_refresh |
Keep you signed in to our web apps (HttpOnly, Secure, SameSite=Lax). The refresh cookie is only sent to the sign-in refresh endpoint. | 1 hour (up to 12 hours in Q-Bridge) / 7 days |
sq_token |
Sign-in session in the Q-Shield and QuantumCareer web apps | 7 days (Q-Shield) / 1 hour (QuantumCareer) |
sq-auth-token |
Sign-in session in the Q-Bridge web app (HttpOnly) | Up to 12 hours |
sq_reauth |
Short marker that stops a sign-in redirect loop after your session expires | 10 seconds |
chalk_guest_token |
Lets a student join a QuantumNative EDU class as a guest, without an account (HttpOnly) | 12 hours |
sq_demo |
Marks a demo session on preview builds only; not set on the live sites | Up to 12 hours |
sq-language |
Your language (en, ko, ja, zh, de, fr, es) | 1 year |
NEXT_LOCALE, qbridge-locale |
The same language choice, used by the Q-Logos and Q-Bridge web apps | 1 year |
sq-cookie-consent (local storage; qbridge-cookie-consent in Q-Bridge) |
Remembers your answer to the cookie banner | Until you clear it |
2. Referral source (first-party)
Referral source (first-party cookie sq_attr, 90 days): when you arrive
from a link with campaign tags (utm_* parameters) or from another
website, we store only those tag values, the referring site's domain
(not the full address), the page you landed on (without query
parameters) and the date. When you create an account or start a
checkout, our server records these values once, without your email,
account ID or IP address, to count which of our posts lead to sign-ups.
It is not shared with advertising networks or other third parties, and
it is not set if your browser sends Global Privacy Control or Do Not
Track.
| Cookie | Type | Lifetime |
|---|---|---|
sq_attr |
first-party (HttpOnly, Secure, SameSite=Lax) | 90 days |
The cookie banner does not turn this cookie on or off yet. To stop it, turn on Global Privacy Control or Do Not Track in your browser, or delete your cookies.
We do not use:
- advertising cookies of any kind;
- third-party analytics services such as Google Analytics;
- cross-site tracking pixels (Facebook Pixel, TikTok Pixel, etc.);
- session-replay tools that record keystrokes or mouse movements;
- fingerprinting libraries.
Managing your preferences
The cookie banner in our web apps saves your answer in local storage. We
set no analytics or advertising cookies, so right now there is nothing
optional for the banner to switch off, and it does not control the
sq_attr cookie above.
You can block or delete cookies in your browser settings at any time.
Deleting cookies also removes sq_attr. If you block the strictly
necessary cookies, you will not stay signed in.
"Do Not Track" and Global Privacy Control
If your browser sends a Global Privacy Control (GPC) or Do Not
Track signal, we do not set the sq_attr referral cookie. Sign-in and
language cookies are still used, because the sites need them to work.
Changes to this policy
We will update this page when we add, remove, or change a cookie. The "Last Updated" date at the top reflects the most recent change.
Contact
Questions about cookies: privacy@swiftquantum.tech.