Last updated: October 2026
Cookie Policy
1. What are cookies?
Cookies are small files that websites store in the user’s browser during a visit. A similar technology is the browser’s local storage, which also lets a site remember information between pages.
2. Necessary cookies and storage
This website keeps in your browser the information it needs to work as you expect: one first-party technical cookie in the access-code area and, using local storage, your browsing preferences:
| Name | Type | Purpose | Duration |
|---|---|---|---|
| pg | First-party technical cookie | Keep access to the Playground images after entering the code. It is only set if the correct code is entered. | 2 hours |
| ism-tema | Local storage | Remember whether you chose the light or dark theme. | Until you delete it |
| ism-intro | Session storage | Avoid replaying the intro animation during the same visit. | Until the tab is closed |
| ism-telon | Session storage | Show the transition between pages. | Until the tab is closed |
| ism-cursor | Session storage | Keep the cursor in place when changing pages. | Until the tab is closed |
| ism-cookie-consent | Local storage | Remember whether you accepted or rejected measurement cookies so you are not asked again on every visit. | 1 year |
This data does not require consent because it is needed to provide the requested service or remember a choice you made (article 22.2 of the Spanish LSSI-CE). Your preferences never leave your browser; the access cookie is only sent to this website.
3. Google Analytics, only if you accept
If you select Accept, this website loads Google Analytics 4, a service provided by Google Ireland Limited (Google) and used to obtain statistics about visits and how pages are used. It may process information such as visited pages, interactions, device and browser type and approximate geographical location. Google states that it uses the IP address during collection to obtain geographical data and then discards it without logging or storing it.
Advertising features, Google signals and ad personalisation remain disabled on this website. Analytics is not used to display advertising, create commercial profiles or make automated decisions.
| Name | Provider | Purpose | Default duration |
|---|---|---|---|
_ga |
Google Analytics | Distinguish visitors using a random identifier. | 2 years |
_ga_<identifier> |
Google Analytics | Maintain session state. | 2 years |
User-level and event-level data is retained in Google Analytics for 2 months. Aggregated statistical reports are not subject to the same period. Google may process data outside the European Economic Area and uses, where applicable, the EU-U.S. Data Privacy Framework and Standard Contractual Clauses.
You can read Google’s information about Analytics cookies and its privacy policy.
4. Accepting, rejecting or withdrawing consent
Google Analytics is not downloaded and no information is sent before you select Accept. You can select Reject and continue using the website normally.
You can change your choice at any time using Cookie settings, available on this page. Withdrawing consent stops Analytics from collecting further data and removes any _ga cookies it created from this browser. Withdrawal does not affect processing carried out lawfully before it.
5. Removing browser data
You can also remove cookies and local storage through your browser settings:
6. Changes to this policy
This policy will be updated if the cookies, their purposes or the providers used by the website change.
This English version is provided for convenience; the Spanish version prevails in case of discrepancy.