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Cookie policy

Last updated: 25 September 2026

This text is a translation of the Spanish original. In the event of any discrepancy, the Spanish version prevails.

1. What a cookie is

A cookie is a small file that a website saves in your browser to store and retrieve information about your visit. There are similar technologies (such as local storage) that serve similar purposes and that this policy also covers.

2. Cookies we use

This site is designed to work with as few cookies as possible. The only ones activated without asking you are the necessary ones; analytics and advertising cookies are accepted or rejected separately, and none is activated until you decide.

Technical or necessary

They enable the basic operation of the site and the provision of the services you request, such as keeping your session during the transformation test or completing the payment process securely. By their nature, they do not require consent.

Analytics (only with your consent)

With your permission, we use analytics tools (Google Analytics, through Google Tag Manager, and PostHog) to understand, in aggregate, how the site is used and to improve it. These cookies are not activated unless you accept them: we apply Google's consent mode, so by default they remain denied until you decide. These tools are not used to show you ads.

Advertising (only with your consent)

If you accept, we load the Meta pixel (Meta Platforms Ireland Ltd.), which does two things: it lets us know whether our ads on Facebook and Instagram lead someone to start the test or write to us, and it shows Quether ads to people who have already visited the website. Meta receives which pages you visit and what actions you take on them (for example, starting the test), together with technical data about your browser. We do not send it the content of forms or your answers to the test.

  • _fbp (Meta, first-party, quether.com): tells one browser apart from others across visits. Duration: 3 months.
  • _fbc (Meta, first-party, quether.com): remembers that you arrived from a Meta ad. It is only created in that case. Duration: 3 months.

For the collection and transfer of this data to Meta, Quether and Meta are joint controllers; what Meta does with it afterwards is governed by its privacy policy.

Third-party

During the payment process, our payment provider may set its own cookies to process the transaction securely and prevent fraud. Its processing is governed by its own policies.

3. How to manage cookies

You can change your decision about analytics and advertising cookies at any time from here:

You can also allow, block or delete the cookies installed on your device through your browser settings. Bear in mind that disabling certain cookies may affect how some parts of the site work, such as the test or payment.

4. Changes to this policy

We may update this cookie policy if the technologies we use change. We will always publish the current version on this page. For more information on how your data is processed, see the privacy policy.