Cookie Policy
Last updated: 30 September 2026 · See also: Privacy Policy
1. What Are Cookies?
Cookies are small text files stored on your device when you visit a website. They remember your preferences and help the site function properly. We also use browser localStorage (stored only on your device) to remember your theme and cookie choices — no personal data is sent to third parties.
2. Cookies We Use
| Type | Name | Purpose | Duration | Requires consent? |
|---|---|---|---|---|
| Necessary | PHPSESSID | Admin login session | Session | No |
| Necessary | nsp_theme | Remember light/dark theme | Persistent (localStorage) | No |
| Necessary | pdpa_cookie_consent | Remember your cookie preference | Persistent (localStorage) | No |
| Necessary | ?lang= | Remember Thai/English language | Per page | No |
| Analytics | visitor_daily (server-side) | Anonymous visit statistics to improve the site | 12 months | Yes |
We do not use advertising cookies, social-media cookies, or any third-party tracking cookies (no Google Analytics, no Facebook Pixel).
3. How We Use Analytics Data
Only with your consent, we record: the page you visited, the date, and a daily-changing SHA-256 hash (of date + IP + browser) used solely to count unique visitors per day. Raw IP addresses and User-Agent strings are never stored. The data cannot identify you and is used only to improve website content and performance.
4. How to Manage or Withdraw Consent
- Click “Cookie settings” in the footer of any page — the consent banner reappears and you can change your choice.
- Or clear your browser’s site data (cookies and localStorage) for this domain.
- Or block cookies in your browser settings (Chrome, Firefox, Safari, Edge) — the site will still work; only anonymous statistics will not be collected.
When you withdraw consent, analytics collection stops immediately. Previously collected anonymous statistics are retained for up to 12 months and then deleted or aggregated.
5. Contact
For questions about cookies or your data, contact our DPO at support@tradesiam.com or call +66 2-350-3200.