Last updated: November 2025

This Privacy Policy describes how astrolabe.elier.org collects, uses, and protects personal data in compliance with the General Data Protection Regulation (GDPR) and applicable European data protection laws.

Controller: Elier Rodriguez Garcia Role: Individual site owner (private person) Email: [email protected] Location: Germany

Authorized persons (such as moderators) may access personal data only when necessary and solely for moderation, security, and compliance purposes, under the authority of the Data Controller.

The Site may collect the following personal data:

• Account registration data (username, email, password)
• Data submitted through the contact form (name, email, message)
• User comments (name or alias, comment text, date)
• Technical data such as IP address, browser type, and visited pages (via Google Search Console or other technical tools)

Collected data are used for the following purposes:

• Managing user accounts and authentication
• Displaying and managing comments
• Responding to contact form submissions
• Sending optional browser notifications or email notifications (with user consent)
• Analysing website usage to improve performance, security, and stability

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3.1. User-Generated Content

Content submitted by users may be publicly visible on the Site. Users are responsible for any personal data they choose to include in such content. Unless otherwise stated, publicly available content is published under the Creative Commons Attribution-NonCommercial 4.0 license.

The Site uses:

• Browser localStorage to store user session data and preferences
• Google Search Console, which provides aggregated technical and performance data related to search visibility

Google Search Console does not allow the Site owner to identify individual users.

For more details, please refer to Google’s Privacy Policy: https://policies.google.com/privacy

If you enable browser notifications, the Site may send you push messages related to your activity (e.g., replies to comments). Notifications are only sent with your explicit consent and can be disabled at any time in your browser settings.

If you receive email notifications, each message will include an option to unsubscribe.

Users may voluntarily subscribe to a newsletter if this feature becomes available. Email addresses will be used solely for sending the newsletter and can be removed at any time using the unsubscribe link or by contacting [email protected].

Passwords are stored securely on the server (hosted at elier.org) using the bcrypt hashing algorithm. Appropriate technical and organizational measures are applied to prevent unauthorized access, loss, or misuse of data.

Additionally, the Site offers the option of multi-factor authentication (MFA) to enhance account security. This means that, in addition to the password, users may need a second verification factor (e.g., a temporary code or an authentication app) to access their account.

Personal data are retained only as long as necessary to provide the requested services or maintain user accounts. Users may request deletion of their data or account at any time by emailing [email protected].

Under the GDPR, users have the right to:

• Access their personal data
• Rectify inaccurate information
• Request deletion of their data ("right to be forgotten")
• Restrict or object to data processing
• Data portability: receive a digital copy of their personal data for transfer to another service upon request

Requests can be sent to [email protected].

The Site may display advertisements provided by third-party advertising services, such as Google AdSense or other third-party advertising providers, if enabled.

These providers may use cookies or similar technologies to:

• Display advertisements
• Measure advertising performance
• Deliver personalized or non-personalized ads, depending on user consent

Advertising technologies may process personal data such as IP address, device information, and interaction data, and may transfer data to servers located outside the European Union in accordance with applicable data protection safeguards.

Advertising cookies and similar technologies are only activated after the user has provided explicit consent via the cookie consent banner. Users may withdraw or modify their consent at any time through the cookie settings panel available on the Site.

More information about Google’s data processing: https://policies.google.com/privacy

Personal data are not shared with third parties except where required by law or necessary for hosting, analytics, or advertising services explicitly described in this Privacy Policy.

The Site owner may update this Privacy Policy at any time. Updates will be published on this page and take effect immediately upon publication.

By using this Site, you acknowledge and accept this Privacy Policy.