Privacy policy

Data controller

The controller of the personal data collected on this site is Glauc Fornés Gil (Barcelona, Spain). You can exercise any right or make any enquiry through the Site’s contact form or by writing to glaucfg@gmail.com.

What data we process and why

Contact form: name, email address and message. Purpose: answering your enquiry. The message is delivered to the owner by email and a copy is kept on the Site’s server for at most 180 days, only so the owner can reply and follow up; it is then deleted.

Newsletter (“Notes by email”): email address and preferred language. Purpose: sending you newly published notes. Legal basis: your consent when subscribing, which you can withdraw at any time with the unsubscribe link in every email (it deletes your address at once), by replying to any email or via the contact form.

Tools: the calculators run in your browser and send nothing. The HS code finder and the public API receive the query on the server to compute the answer and do not store it.

Quiz classroom: no student data is collected. The nickname a student types is kept on their own phone and in the room, and the whole room is deleted twelve hours after creation. The teacher creates no account.

AI assistant (trial): the text of your question is sent to the Site’s server and from there to the inference service of Auriga Intelligence, in the European Union, to generate the answer. The conversation is not stored. To limit abuse, a derived identifier (hash) of your IP address and browser is kept for 24 hours; it does not allow you to be identified. Do not enter personal data in the question.

Technical logs: the server records when it turns a request away (for example, too many requests) and which API tool was used, without IP address or content, to watch the Site’s operation and security. They contain no personal data.

Legal basis and retention

The legal basis for the newsletter and the contact form is your consent (art. 6.1.a GDPR). The assistant’s anti-abuse identifier and the technical logs rely on the owner’s legitimate interest in protecting the Site (art. 6.1.f GDPR). Newsletter data is kept for as long as the subscription lasts; contact-form data for the time needed to handle the enquiry and at most 180 days.

Recipients and transfers

Data is neither shared with third parties nor transferred outside the European Union, with a single exception: the text of questions to the AI assistant is processed by Auriga Intelligence as a data processor, on servers in the European Union, for the sole purpose of generating the answer. The Site is hosted on Hetzner Online GmbH servers located in the European Union (Finland), under the standard hosting data-processor relationship.

Cookieless analytics

The Site uses Umami, an open-source analytics system self-hosted by the owner on the same server. It uses no cookies, collects no personal data or identifiers, performs no cross-site tracking, and all metrics are aggregate and anonymous. That is why no consent banner is required.

Cookies and local storage

The public pages of the Site use no cookies. Only the administration area, used by the owner alone (Google sign-in), sets a technical session cookie. The Site also uses the browser’s local storage (localStorage) to remember your light/dark theme preference and, in the classroom, the room code so you can rejoin: technical data needed for the service, exempt from consent.

Your rights

You may at any time exercise your rights of access, rectification, erasure, objection, restriction of processing and portability through the contact form or by writing to glaucfg@gmail.com. You also have the right to lodge a complaint with the Spanish Data Protection Agency (aepd.es) or your local supervisory authority.