Cookie policy
Last updated: 20 September 2026
1. What are cookies?
Cookies are small text files that websites store on your device when you visit them. They allow the site to remember information about your visit, such as your preferred language or whether you are logged in, making your next visit easier and the site more useful for you.
In accordance with Regulation (EU) 2016/679 (GDPR) and Law 34/2002 (LSSI-CE), we inform you of the use of cookies on sonidoenred.com and request your consent for those that are not strictly necessary.
2. Types of cookies we use
2.1 Strictly necessary cookies
These are essential for the platform to function. Without them, you would not be able to log in or browse securely. They do not require your consent.
| Cookie | Provider | Purpose | Duration |
|---|---|---|---|
sessionid |
SonidoenRed | Keeps your session active. | 2 weeks |
csrftoken |
SonidoenRed | Protects forms against CSRF attacks. | 1 year |
django_language |
SonidoenRed | Remembers the language you selected in the switcher. | Browser session |
srn_no_analytics |
SonidoenRed | Flags this browser so that analytics is never loaded. It is only created if you explicitly request it. | 1 year |
2.2 Local storage
Besides cookies, we store two values in your browser's local storage. They are not sent to the server in any request, and you can delete them by clearing the site data.
| Key | Provider | Purpose | Duration |
|---|---|---|---|
sonidoenred_consent |
SonidoenRed | Stores your choice about analytics cookies and the version of the policy you were shown. | 1 year |
srn_theme |
SonidoenRed | Remembers whether you prefer the light or dark theme. | Until you clear the site data |
2.3 Analytics cookies
They let us understand, in aggregate, how the platform is used so that we can improve it. They require your consent and are not installed if you refuse. We do not use advertising or ad-personalisation cookies.
| Cookie | Provider | Purpose | Duration |
|---|---|---|---|
_ga |
Google Analytics | Distinguishes unique users for usage statistics. | 2 years |
_ga_* |
Google Analytics | Stores the Analytics session state. | 2 years |
3. Third-party cookies when you leave the site
Some of the comparator's links are affiliate links. If you click one you leave sonidoenred.com, and the affiliate network (TradeTracker, Awin or Amazon) and the destination shop may set their own cookies in your browser in order to attribute the sale. Those cookies are created on their domains, not on ours, and are governed by their respective cookie policies. None of them is set while you browse SonidoenRed without clicking those links.
Some training lessons include videos from our YouTube channel. Until you press the play button only a still image is shown and no connection is made to YouTube. When you press it, the video loads from youtube-nocookie.com (YouTube's privacy-enhanced mode) and, from that moment on, Google's privacy and cookie policy applies.
4. How to manage or refuse cookies
You can change your choice at any time using the button below, or withdraw your consent through your browser settings. Please note that disabling certain cookies may affect the functioning of the platform.
Instructions for the most common browsers:
For Google Analytics cookies, you can also install the official opt-out add-on: Google Analytics Opt-out .
5. Updates to this policy
We may update this policy when we incorporate new tools or when applicable regulations change. The date of the last revision always appears at the beginning of this document.
For any questions about the use of cookies, you can write to us at [email protected].