</> Codelumen Contact
// Legal

Cookie Policy

Last Updated: 10 June 2026

Data Controller: Codelumen · 112 Rama IX Road, Huai Khwang, Bangkok 10310, Thailand

Questions about cookies: [email protected]

1. What Are Cookies

Cookies are small text files that a website places on your device — computer, tablet, or phone — when you visit. They allow the website to remember certain information about your visit, such as your preferred language or whether you have already seen a particular notice. Cookies do not give us access to your device and cannot carry viruses.

Similar technologies include local storage (data saved in your browser) and pixel tags (tiny transparent images that help us understand how pages are used). This policy covers all such technologies together and refers to them collectively as "cookies".

2. How We Use Cookies

Codelumen uses cookies for three main purposes: to keep the website working properly, to understand how visitors use it so we can improve it, and to remember choices you have made. We do not use cookies to serve advertising or to track you across other websites.

Your choices matter

When you first visit our website, a notice gives you the option to accept or decline non-essential cookies. You can also change your preferences at any time using the controls described in Section 6 below. Declining non-essential cookies will not affect your ability to read our content or submit an enquiry.

3. Categories of Cookies We Use

3.1 — Essential Cookies

These cookies are necessary for the website to function. They enable core features such as page navigation and form submission. Without them, parts of the site may not work correctly. Essential cookies do not require your consent under Thai law (PDPA) because they are strictly necessary to provide the service you have requested.

3.2 — Analytics Cookies

If you consent, we use analytics tools to collect information about how visitors use our website — for example, which pages are visited most often and where visitors come from. This data is collected in aggregate and does not identify you personally. It helps us understand what content is useful and where the site can be improved.

3.3 — Functional Cookies

These cookies allow the website to remember choices you make — such as whether you have acknowledged our cookie notice — so you do not see the same prompts repeatedly. They do not track your activity on other websites.

4. Cookies We Set

The table below lists the cookies currently in use on this website. Cookie names and durations may change as we update our site; this table is reviewed regularly.

Cookie Name Category Purpose Duration
cl_cookie_consent Essential Stores your cookie preference so you are not shown the consent notice again on return visits. 12 months
cl_session Essential Maintains your session while navigating the website. Expires when you close your browser. Session
_ga Analytics Google Analytics — distinguishes unique visitors for aggregate usage statistics. Only set if analytics cookies are accepted. 2 years
_ga_* Analytics Google Analytics — stores and counts page views. Only set if analytics cookies are accepted. 2 years
_gid Analytics Google Analytics — distinguishes users within a 24-hour window. Only set if analytics cookies are accepted. 24 hours
cl_form_token Functional A short-lived token used to protect contact form submissions from automated bots. Contains no personal data. 1 hour

5. Third-Party Cookies

Some cookies on our website are set by third-party services. We have limited control over these cookies, but we only use services that we consider reputable and appropriate for our learner community.

We do not embed social media plugins or use advertising networks. No cookies from social platforms or ad networks are set on our website.

6. Your Cookie Choices

You have several ways to manage cookies:

6.1 — Our Consent Tool

When you first visit our website, a notice at the bottom of the page allows you to accept or decline non-essential cookies. You can update your choice at any time by clearing your browser's cookies for our domain and reloading the page — the notice will reappear.

6.2 — Browser Settings

Most browsers allow you to view, delete, and block cookies through their settings menus. Blocking all cookies may affect the usability of some features. Guidance for common browsers:

6.3 — Opt Out of Google Analytics

You can prevent Google Analytics from collecting your data by installing the Google Analytics Opt-out Browser Add-on, available from Google's website.

7. Cookie Duration

Cookies are either "session cookies" (deleted when you close your browser) or "persistent cookies" (remain on your device until they expire or you delete them). Session cookies help the site work during your visit. Persistent cookies remember your preferences or collect aggregate analytics data over a longer period. The duration of each cookie we set is listed in the table in Section 4.

8. Cookies and Children

Our website is not directed at children under the age of 18. We do not knowingly set tracking or analytics cookies on the devices of minors. If you believe a minor has interacted with our website and you have concerns about data, please contact us at [email protected].

9. Changes to This Policy

We may update this Cookie Policy from time to time to reflect changes in the cookies we use or in applicable legislation. When we make changes, we will update the "Last Updated" date at the top of this page. We encourage you to check this page periodically. Continued use of our website after a change is posted indicates your acknowledgment of the updated policy.

10. Contact Us

If you have questions about how we use cookies, or would like to exercise any rights you hold under Thailand's Personal Data Protection Act (PDPA), please contact us:

See also our Privacy Policy and Terms & Conditions for full details of how we handle personal data and govern use of our services.