Cookie Policy | Synthia

1. What Are Cookies?

Cookies are small text files that a website stores on your device when you visit. They help the site remember information about your visit — for example, which pages you viewed or whether you have already accepted this notice — so you do not have to re-enter the same details each time you return.

Cookies do not contain personally identifiable information on their own. They are a widely used, well-established part of how websites work. Most browsers accept cookies by default, but you can adjust your settings if you prefer.

2. Cookies We Use

We use four categories of cookies. Essential cookies are always active. The remaining three are optional and only placed after you give consent.

Essential Cookies Always active

These cookies are required for the site to function. Without them, features like the cookie consent modal, secure form submissions, and session continuity would not work. They do not collect data for marketing or analytics.

Examples: cookieConsent (this policy), session token

Analytics Cookies Optional

These help us understand how visitors use the site — which pages attract the most interest, how long people stay, and where they navigate next. The data is aggregated and cannot be used to identify individual visitors.

Examples: _ga, _gid (Google Analytics)

Marketing Cookies Optional

Marketing cookies allow us and our advertising partners to show content that may be relevant to your interests. They track browsing activity across sites to help measure the reach of our communications. You can opt out without affecting your ability to use the site.

Examples: _fbp (Meta Pixel), IDE (Google Ads)

Preference Cookies Optional

Preference cookies remember choices you make — such as your region or display settings — so you do not have to re-select them on each visit. Disabling these means the site will not remember your selections between sessions.

Examples: ui_lang, region_pref

3. Third-Party Cookies

Some cookies on this site are placed by third-party services. These third parties have their own privacy policies, which govern how they collect and process data.

Google Analytics — aggregated site usage statistics. Google Privacy Policy
Google Ads — conversion and retargeting measurement.
Meta Pixel — reach measurement for social media communications.

Third-party cookies are only placed if you have enabled the relevant category above.

4. How Long Cookies Last

Type	Duration	Notes
Essential	Session or 1 year	Consent record stored for 1 year
Analytics	Up to 2 years	_ga expires after 2 years
Marketing	Up to 90 days	Varies by advertising platform
Preferences	Up to 1 year	Refreshed on each visit

Session cookies are removed automatically when you close your browser. Persistent cookies remain until they expire or until you delete them.

5. Your Cookie Preferences

Use the controls below to choose which optional cookie categories you allow. Your selection is saved in your browser and takes effect immediately. You can change these settings at any time.

Essential Cookies

Required for the site to work. Always active.

Analytics Cookies

Help us understand site usage through aggregated data.

Marketing Cookies

Used for measuring the reach of our communications.

Preference Cookies

Remember your display and region settings between visits.

Preferences saved successfully.

6. Managing Cookies in Your Browser

You can control or remove cookies directly in your browser settings. Steps vary by browser; find yours below. Note that blocking all cookies may affect how some parts of this site work.

Google Chrome

Open Chrome and click the three-dot menu (⋮) in the top-right corner.
Select Settings, then Privacy and security.
Click Cookies and other site data.
Choose your preferred level: allow all, block third-party, or block all.
To delete existing cookies, scroll down to See all site data and permissions and clear as needed.

Mozilla Firefox

Click the menu button (☰) and select Settings.
Go to Privacy & Security.
Under Enhanced Tracking Protection, choose Standard, Strict, or Custom.
To manage individual cookies, scroll to Cookies and Site Data and click Manage Data.

Apple Safari

Open Safari and go to Preferences (or Settings on iOS).
Click the Privacy tab.
Under Cookies and website data, choose your preference.
Click Manage Website Data to see and remove stored cookies by site.

Microsoft Edge

Click the three-dot menu (…) and select Settings.
Go to Cookies and site permissions.
Click Cookies and data stored to adjust your preferences.
You can also set exceptions for specific sites under Allow or Block.

Mobile browsers: On most mobile devices, cookie settings are found under your browser's main menu → Privacy or Security. Steps follow a similar pattern to the desktop versions above.

7. Your Rights and Controls

Under Thailand's Personal Data Protection Act (PDPA) and general data protection principles, you have the right to:

Withdraw consent at any time using the preference controls in Section 5 above.
Access information about what data is collected via cookies and how it is used.
Request deletion of data collected through optional cookies by contacting us.

Withdrawing consent for optional categories will not affect any processing that took place while consent was in effect. It will also not prevent you from using the main features of this site — only preference-related personalisation may be reduced.

For questions about this policy or to exercise your rights, contact us at [email protected] or write to: Synthia, 70 Nimmanhaemin Road, Suthep, Chiang Mai 50200, Thailand.

8. Changes to This Policy

We may update this Cookie Policy when we add new features or when legal requirements change. The "Last updated" date at the top of this page will reflect any changes. Continued use of the site after changes take effect indicates acceptance of the updated policy.