// Legal
Cookie Policy
Last Updated: 8 June 2025 · Effective Date: 8 June 2025
Your Cookie Preferences
Adjust which optional cookies you allow. Essential cookies cannot be turned off — they are required for the site to work.
Session and security cookies needed for basic site functionality. No personal data is sent to third parties.
Help us understand how visitors use the site — which pages are visited, how long learners stay, and where they come from. All data is aggregate and does not identify individuals.
Remember choices such as language or display settings so you do not need to re-select them on each visit.
1. What Are Cookies?
Cookies are small text files placed on your device when you visit a website. They allow the site to remember information about your visit — such as language preferences or whether you have accepted a notice — making subsequent visits more straightforward. Cookies cannot run programmes or deliver viruses.
We also use similar technologies such as localStorage (browser storage) to record your consent choices. These function in a comparable way to cookies.
2. How We Use Cookies
We use cookies for three purposes: to keep the site working correctly (essential), to understand how it is used in aggregate (analytics), and to retain your display or language preferences (preferences). We do not use cookies for advertising, profiling, or cross-site tracking.
3. Cookie Types We Use
| Name / Identifier | Type | Purpose | Duration |
|---|---|---|---|
| gradient_cookie_consent | Essential | Stores your cookie consent choices in localStorage so the banner is not shown on every visit. | 12 months |
| _session | Essential | Maintains session state for forms and navigation. No personal data transmitted to third parties. | Session |
| _ga, _ga_* | Analytics | Google Analytics identifiers used to distinguish visitors and measure aggregate site usage. Only set if you accept analytics cookies. | Up to 2 years |
| _gid | Analytics | Used by Google Analytics to distinguish visitors across a 24-hour window. | 24 hours |
| gradient_prefs | Preference | Stores display preferences (e.g. language) in localStorage so they persist across sessions. | 6 months |
4. Third-Party Cookies
If analytics cookies are accepted, Google Analytics may set cookies from its own domain. These cookies are governed by Google's Privacy Policy. We do not permit any other third-party cookies on this site.
5. Managing Cookies in Your Browser
In addition to the preference panel above, you can control cookies through your browser settings. Most browsers allow you to view, block, or delete cookies. Note that blocking essential cookies may prevent parts of the site from functioning correctly. Guidance for common browsers:
- Chrome: Settings → Privacy and Security → Cookies and other site data
- Firefox: Settings → Privacy & Security → Cookies and Site Data
- Safari: Preferences → Privacy → Manage Website Data
- Edge: Settings → Cookies and site permissions
6. Consent & Withdrawal
When you first visit our site, a banner explains our cookie use and asks for your consent to optional cookies. You may change your preferences at any time using the panel at the top of this page. Withdrawing consent does not affect any processing that took place before the withdrawal.
7. Policy Updates
We may update this policy when we change how we use cookies. The "Last Updated" date at the top of this page reflects the most recent revision. Continued use of the site after an update constitutes acceptance of the revised policy.
8. Contact
If you have questions about our use of cookies:
- Email: [email protected]
- Address: Gradient, 168 Ratchadaphisek Road, Din Daeng, Bangkok 10400, Thailand
- Phone: +66 2 681 4709