Privacy and Cookie Policy

Last updated: May 2026

This page describes the management methods of the website regarding the processing of personal data of users who consult it, register, or use its interactive services.

1. Data Controller

The Data Controller is Luigi Serio, who can be contacted at the email address: info@luigiserio.com

2. Types of Data Collected

The following personal data are collected through this website:

Data provided voluntarily by the user: Email address and password (securely stored via non-reversible hashing) during account registration for access to the restricted area.
Navigation and technical data: IP address, website usage data, unique cookie identifiers.

3. Purposes of Processing and Legal Basis

Data are processed for the following purposes:

Service Provision (Registration and Authentication): To allow you to create an account, log in, and save your preferences or customized diagrams. The legal basis is the performance of a contract to which the user is party (Art. 6, para. 1, lit. b of the GDPR).
Statistical Analysis: To optimize website performance and understand the use of interactive diagrams via Google Analytics 4. The legal basis is the user's explicit consent (Art. 6, para. 1, lit. a of the GDPR), optionally expressed through the cookie banner.

4. Processing Methods and Data Retention

Data are processed using computer systems and protected by adequate logical and technical security measures natively managed by the .NET Identity Standard.

Account data (email and related saved records) are kept until the user decides to request the deletion of their profile.
Statistical tracking data from Google Analytics 4 are stored in aggregate form for the standard duration provided by the service (14 months).

5. Data Recipients

Your personal data are not sold, transferred, or commercialized to third parties. They may be accessed exclusively by:

The hosting service provider on which the web application is published, designated as Data Processor.
Google LLC, limited to anonymized and aggregated navigation data via the Analytics platform.

6. Rights of the Data Subject

At any time, the user may exercise the rights provided by Articles 15-22 of the GDPR: request access to their data, rectification, erasure ("right to be forgotten"), restriction of processing, or total objection to their use. Requests must be forwarded via email to the Data Controller.

Detailed Cookie Policy

Cookies are small text files that visited websites send to the user's browser, where they are stored to be retransmitted to the same website upon a subsequent visit. This website uses both first-party (technical) and third-party (statistical) cookies.

Types of Cookies used:

A. Technical and Session Cookies (Strictly Necessary)

These cookies do not require prior user consent as they are indispensable for enabling navigation and providing the requested services.

.AspNetCore.Identity.Application: Native .NET Identity cookie. Manages authentication state and keeps the user session active during navigation. Duration: session / set expiration.
cookie_consent - CookieConsentRejected: Internal technical cookie used to store whether the user has accepted or refused the use of statistical cookies. Duration: 12 months.
Preference Cookies (Language, Filters, Layout): Used to remember user choices such as the selected language, filters applied to charts, and mobile device optimization. Duration: session or up to 12 months.

B. Statistical and Performance Cookies (Require Prior Consent)

These cookies are activated only after the user's explicit consent via the dedicated banner.

_ga, _ga_*: Third-party cookies from Google Analytics 4 (Google LLC). They collect information in aggregated and anonymous form on the number of visits and how users interact with the charts/diagrams, for the sole purpose of optimizing the website.

7. How to modify or withdraw consent

It is possible to modify or withdraw the given consent at any time. To do this, the user must manually delete the cookies stored in their browser by following the official instructions of the browser developer (Chrome, Edge, Firefox, Safari).

Cookie policy