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Privacy Policy

Last updated: 25 de setembro de 2026

O Núcleo de Exatas is an educational project dedicated to providing Mathematics, Physics and Calculus content, including theory, solved exercises, questions, and mock tests.

This Privacy Policy explains how information may be processed while using the website nucleodeexatas.com.br.

1. Website Operator

Núcleo de Exatas is responsible for operating and providing this website.

For matters related to privacy and data protection, please use the contact channels provided on the About.

2. Information That May Be Processed

Simply browsing the public content of Núcleo de Exatas does not require providing information such as Brazilian tax identification numbers (CPF), personal documents, banking details, or financial information.

Depending on how the website and its services are used, technical data related to browsing may be processed, such as:

  • IP address;
  • browser type and version;
  • device type;
  • operating system;
  • pages accessed;
  • date and time of access;
  • technical information necessary for the security and operation of the website.

The exact nature of the data processed may vary depending on the services and features actually used on the website.

3. Purposes of Data Processing

The information that may be processed may be used, as applicable, to:

  • provide and maintain the operation of the website;
  • ensure the security of the infrastructure;
  • identify and resolve technical issues;
  • prevent abuse and malicious activities;
  • improve the browsing experience;
  • analyze website performance;
  • produce usage statistics when analytics tools are enabled;
  • comply with legal obligations or exercise rights in judicial or administrative proceedings, when applicable.

4. Legal Bases

Personal data will be processed in accordance with applicable legislation, especially Law No. 13,709/2018 (Brazilian General Data Protection Law – LGPD).

The legal basis used may vary depending on the purpose and circumstances of the processing and may include, where applicable, compliance with a legal or regulatory obligation, the regular exercise of rights, legitimate interest, or the data subject's consent.

5. Cookies and Similar Technologies

Cookies are small files or pieces of information stored on the visitor's device that may be used for certain features, security, preferences, analytics, or advertising.

Núcleo de Exatas may use cookies and similar technologies necessary for the operation, security, and delivery of the website.

If tools using cookies or similar technologies for non-essential purposes, such as audience analytics or advertising, are incorporated, information about these technologies will be presented transparently and, when necessary, the visitor's consent will be requested.

More information is available in the Cookie Policy.

6. Hosting and Infrastructure

The website is hosted and provided using infrastructure from Cloudflare.

As part of providing these services, technical information related to requests made to the website may be processed to deliver content, ensure security and performance, and prevent abuse.

Cloudflare has its own privacy policies and documentation regarding the use of cookies, which can be consulted through its official channels.

7. Analytics Services

Currently, Núcleo de Exatas does not state in this policy that it uses audience analytics tools that are not actually installed on the website.

If tools such as Google Analytics are incorporated in the future, this Privacy Policy will be updated to describe the information collected, its purposes, and the applicable consent mechanisms.

8. Advertising

Núcleo de Exatas may use third-party advertising in the future, including services such as Google AdSense.

If advertising is incorporated, this Privacy Policy and the Cookie Policy will be updated to provide information about the technologies used, the data processed, and the third parties involved, as applicable.

When required by provider policies or applicable legislation, mechanisms for obtaining and managing user consent will be made available.

9. Information Sharing

Information may be shared with infrastructure providers and service providers used to operate, protect, or improve the website, always in accordance with the corresponding purpose and applicable legislation.

Núcleo de Exatas does not sell visitors' personal data.

10. Data Retention

Information will be retained for as long as necessary to fulfill the purposes for which it was collected, comply with legal or regulatory obligations, prevent fraud and abuse, or exercise rights.

Retention periods may vary depending on the type of information and the service responsible for processing it.

11. Data Subject Rights

Under applicable legislation, especially the LGPD, data subjects may exercise rights related to the processing of their personal data, including, as applicable:

  • confirmation of the existence of processing;
  • access to personal data;
  • correction of incomplete, inaccurate, or outdated data;
  • information about the processing and sharing of data;
  • deletion of personal data, when legally applicable;
  • withdrawal of consent when consent is the legal basis used;
  • other rights provided for under applicable legislation.

Privacy-related requests may be submitted through the contact channels provided on the About.

12. Security

Reasonable technical and organizational measures are adopted to protect the website and the information processed against unauthorized access, loss, alteration, improper disclosure, and other security incidents.

Despite the measures adopted, no service available on the internet can guarantee absolute security against all existing risks.

13. Third-Party Content and Links

Núcleo de Exatas may provide links to third-party websites, services, or resources.

When accessing these services, visitors will be subject to the policies and terms of the respective third parties. Núcleo de Exatas is not responsible for the privacy practices adopted by external websites.

14. Changes to this Privacy Policy

This Privacy Policy may be updated to reflect changes to the operation of the website, the services used, the technologies employed, or applicable legislation.

The date of the last update will be indicated at the beginning of this page.

15. Contact

For questions, requests, or matters related to privacy and personal data protection, please contact us through the channels provided on the About.