Last Updated: 2026-06-07

Cookie Policy

This Cookie Policy explains how MTG Master uses cookies and similar technologies when you visit or use our website, tools, and services.

MTG Master is operated by Marc Dalmau Ballester, a self-employed professional (“Autónomo”) established in Spain.

This Cookie Policy should be read together with our Privacy Policy, which explains how we process personal data more generally.

We use cookies and similar technologies in accordance with applicable laws, including the General Data Protection Regulation (EU) 2016/679 (“GDPR”), the ePrivacy Directive, and Spanish Law 34/2002 on Information Society Services and Electronic Commerce (“LSSI-CE”).

Cookies that are not strictly necessary are only used after you give consent through our cookie banner or cookie settings, where consent is required by law.

You can reject optional cookies or manage your preferences at any time.

1. Who Is Responsible

The person responsible for this website and the use of cookies is:

Marc Dalmau Ballester
Professional address: Sant Roc 2, 08340, Vilassar de Mar, Barcelona, Spain
Email: contact@mtgmaster.ai
Tax ID (NIF): 38.834.346L

In this Cookie Policy, Marc Dalmau Ballester is referred to as “we”, “us”, or “our”, and MTG Master is referred to as the “Service”.

2. What Are Cookies?

Cookies are small text files stored on your device, such as your computer, tablet, or smartphone, when you visit a website.

They allow a website to recognize your browser and remember certain information, such as your session, preferences, consent choices, or interactions with the website.

We may also use similar technologies where appropriate, such as:

Local storage
Session storage
Pixels
Similar client-side storage mechanisms used for functionality, security, analytics, or consent management

In this Cookie Policy, we refer to all of these technologies as “cookies” for simplicity.

3. Types of Cookies We Use

MTG Master may use the following types of cookies.

3.1 Strictly Necessary Cookies

These cookies are required for the Service to work properly. They cannot be disabled through our cookie banner because they are necessary to provide the website and its basic functions.

They may be used for:

User authentication and login sessions
Account access and session management
Security and fraud prevention
Load balancing and infrastructure stability
Payment flow support
Storing cookie consent preferences
Remembering essential choices required for the Service to operate

Legal basis:
These cookies are necessary to provide the Service requested by the user and to keep it secure and functional.

Where personal data is processed through strictly necessary cookies, the legal basis may include:

GDPR Article 6(1)(b): performance of a contract or steps prior to entering into a contract
GDPR Article 6(1)(f): legitimate interests in providing a secure and functional Service

3.2 Functional Cookies

Functional cookies help remember preferences and improve the user experience, but they are not always strictly necessary for the basic operation of the Service.

They may be used for:

Language preferences
Interface preferences
Theme or display settings
Remembering non-essential user choices

Legal basis:
Where consent is required, we rely on GDPR Article 6(1)(a): your consent.

3.3 Analytics and Performance Cookies

Analytics and performance cookies help us understand how users interact with the Service, which pages are visited, which features are used, and where we can improve performance, usability, or reliability.

We may use Google Analytics 4 (GA4) for this purpose.

Analytics cookies may collect information such as:

Pages visited
Approximate visit duration
General interaction events
Device and browser information
Approximate location based on technical data
Aggregated usage patterns

Important points:

Google Analytics is only loaded after you give consent to analytics cookies, where consent is required.
Analytics cookies are disabled by default until consent is given.
We use available privacy controls such as Google Consent Mode and IP-related privacy settings where applicable.
We use analytics to understand and improve the Service, not to identify individual users directly.

Legal basis:
GDPR Article 6(1)(a): your consent.

Analytics cookies will not be enabled without your permission where consent is required by law.

3.4 Marketing or Advertising Cookies

At this time, MTG Master does not use advertising, retargeting, behavioural profiling, or marketing cookies.

If this changes in the future, this Cookie Policy will be updated and your consent will be requested before any such cookies are activated, where required by law.

4. Third-Party Cookies

Some cookies may be placed or accessed by third-party providers that help us operate, secure, measure, or improve the Service.

At this time, third-party cookies are limited to analytics cookies related to Google Analytics 4, and only after you give consent where required.

We do not intentionally embed third-party content that automatically sets tracking cookies without user interaction or consent where required.

Google’s own privacy information is available in Google’s privacy policy and related documentation.

5. Cookie Banner and Consent

When you first visit the Service, where required by law, you will see a cookie banner or consent panel that allows you to:

Accept optional cookies
Reject optional cookies
Customize cookie preferences

Optional cookies are not enabled unless you consent to them.

Your choice is stored using a strictly necessary cookie or similar storage mechanism so that the banner does not appear unnecessarily on every visit.

You can change or withdraw your consent at any time through the Cookie Settings link or option available on the Service.

The cookie banner should provide clear options to accept, reject, or manage optional cookies. In Spain, the AEPD cookie guidance expects users to have a clear way to reject non-essential cookies as well as accept them. (www.hoganlovells.com)

6. How You Can Manage or Delete Cookies

6.1 Cookie Settings

You can accept, reject, or modify your cookie preferences at any time using the Cookie Settings option available on the Service.

6.2 Browser Settings

Most browsers allow you to delete or block cookies through their settings.

This usually includes browsers such as:

Chrome
Firefox
Safari
Edge
Brave
Opera

Instructions are usually available in the “Privacy”, “Security”, or “Cookies” section of your browser settings.

6.3 Mobile Devices

Mobile operating systems such as iOS and Android may also provide controls for:

Browser cookies
App tracking permissions
Advertising identifiers
Privacy settings

6.4 Impact of Disabling Cookies

If you block or delete strictly necessary cookies, some parts of the Service may not work correctly.

For example, login, account access, session management, payment flows, saved preferences, or security features may be affected.

Rejecting optional cookies will not prevent you from using the core Service.

7. International Data Transfers

Some third-party providers, including analytics providers, may process data outside the European Economic Area, including in the United States.

Where personal data is transferred outside the European Economic Area, we rely on appropriate safeguards under GDPR, such as:

An adequacy decision from the European Commission
Standard Contractual Clauses approved by the European Commission
Other legally valid transfer mechanisms or safeguards

The European Commission provides standard contractual clauses that may be used as safeguards for transfers of personal data to countries outside the European Economic Area. (European Commission)

You may contact us if you want more information about international transfers and applicable safeguards.

8. Cookie Duration and Retention

Cookies may remain on your device for different periods depending on their purpose.

In general:

Session cookies are deleted when you close your browser.
Persistent cookies remain on your device until they expire or you delete them manually.
Consent preference cookies may remain for a reasonable period so we can remember your cookie choices.
Analytics cookies, where enabled, remain for the duration set by the analytics provider and our configuration.

Google Analytics retention periods depend on configuration and Google’s own service settings. Where possible, we configure retention in a privacy-conscious way and only keep analytics information for as long as reasonably necessary to understand and improve the Service.

9. Updates to This Cookie Policy

We may update this Cookie Policy from time to time to reflect legal, technical, or operational changes.

When we update this Cookie Policy, we will publish the new version on this page and update the “Last Updated” date.

If a change is important, we may also provide additional notice through the Service where appropriate.

10. Contact

If you have any questions about this Cookie Policy or our use of cookies, you can contact:

Marc Dalmau Ballester
Email: contact@mtgmaster.ai
Professional address: Sant Roc 2, 08340, Vilassar de Mar, Barcelona, Spain
Tax ID (NIF): 38.834.346L