Last updated: 27 April 2026

This Privacy Policy explains how personal data is collected, used and protected when you use this website, gusarev.com, or contact us through the website or related online channels.

1. Controller

The controller responsible for data processing is:

Bogdan Gusarev
Königsallee 27
40212 Düsseldorf
Germany

Email: gusarevb@gmail.com

Website: gusarev.com

2. General information

We process personal data only where this is permitted under applicable data protection law, in particular the General Data Protection Regulation (GDPR) and applicable German data protection laws.

Personal data means any information relating to an identified or identifiable natural person. This may include, for example, your name, email address, telephone number, IP address, communication content or technical information about your device.

3. Types of personal data processed

Depending on how you use this website, we may process the following categories of personal data:

  • Contact data, such as name, email address and telephone number.

  • Communication data, such as messages submitted through forms, email or other contact channels.

  • Technical data, such as IP address, browser type, operating system, device information, referrer URL, date and time of access.

  • Usage data, such as pages visited, access times and interaction with website content.

  • Marketing and analytics data, where applicable and only where legally permitted.

4. Purposes of processing

We process personal data for the following purposes:

  • To provide and operate this website.

  • To ensure website security and technical stability.

  • To respond to enquiries and communicate with you.

  • To provide information about services, projects or professional activities.

  • To analyse and improve the website, where analytics tools are used.

  • To send newsletters or marketing communications, where you have subscribed or where legally permitted.

  • To maintain social media presences and communicate through professional online platforms.

5. Legal bases

The legal bases for processing personal data are:

  • Article 6(1)(a) GDPR — consent, for example for newsletters, non-essential cookies or analytics tools.

  • Article 6(1)(b) GDPR — performance of a contract or steps prior to entering into a contract, for example when you contact us about a possible business relationship.

  • Article 6(1)(f) GDPR — legitimate interests, for example in operating a secure website, responding to enquiries and presenting professional information online.

  • Article 6(1)(c) GDPR — legal obligations, where processing is required by law.

6. Website hosting and server log files

When you visit this website, technical data is automatically processed to display the website correctly and securely. This may include:

  • IP address.

  • Date and time of access.

  • Browser type and version.

  • Operating system.

  • Referrer URL.

  • Pages and files accessed.

  • Amount of data transferred.

  • Access status or error messages.

This processing is necessary for the technical provision, security and stability of the website. The legal basis is Article 6(1)(f) GDPR.

Server log files are normally stored only for as long as necessary for security and technical purposes, unless longer storage is required to investigate misuse, attacks or legal claims.

7. Contact by email or contact form

If you contact us by email, contact form, telephone or another communication channel, we process the information you provide in order to respond to your enquiry.

This may include your name, email address, telephone number, company, message content and any other information you provide voluntarily.

The legal basis is Article 6(1)(b) GDPR where the communication relates to contractual or pre-contractual matters, and Article 6(1)(f) GDPR for general communication.

8. Cookies and similar technologies

This website may use cookies or similar technologies. Cookies are small files stored on your device. They may be necessary for the operation of the website or used for optional purposes such as analytics, marketing or personalisation.

We distinguish between:

  • Necessary cookies, which are required for the website to function.

  • Analytics cookies, which help us understand how visitors use the website.

  • Marketing cookies, which may be used to measure or personalise advertising.

  • External media cookies, which may be set when embedded content such as videos or social media content is loaded.

Necessary cookies are used on the basis of Article 6(1)(f) GDPR and, where applicable, Section 25 TDDDG. Non-essential cookies and similar technologies are used only with your consent, where required. The legal basis is Article 6(1)(a) GDPR.

You may withdraw your consent at any time through the cookie settings on the website, where such settings are available.

9. Analytics and website optimisation

If analytics tools are used on this website, they help us understand how visitors interact with the website and improve its content, structure and performance.

Analytics may involve the processing of usage data, technical data and pseudonymous identifiers. Where required, analytics tools are used only after your consent.

The legal basis is Article 6(1)(a) GDPR where consent is required, and Article 6(1)(f) GDPR where processing is based on legitimate interests and legally permitted.

Note for publication: Keep this section only if you actually use tools such as Google Analytics, Matomo, Plausible, Hotjar, Microsoft Clarity or similar.

10. Google Analytics

If Google Analytics is used, this website uses Google Analytics, a web analytics service provided by Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland.

Google Analytics may process information about your use of this website, including technical information, page views, approximate location, device data and interaction data. Google states that Google Analytics does not log or store IP addresses from EU users.

Google Analytics is used only with your consent where legally required. The legal basis is Article 6(1)(a) GDPR.

Note for publication: Delete this section if Google Analytics is not used.

11. Newsletter

If you subscribe to a newsletter, we process your email address and, where provided, your name and other subscription details.

Newsletter registration may use a double opt-in process. This means that after registration you receive an email asking you to confirm your subscription. We may store the registration time, confirmation time and IP address in order to prove consent.

You may unsubscribe from the newsletter at any time, either through the unsubscribe link in each newsletter or by contacting us.

The legal basis for sending newsletters is Article 6(1)(a) GDPR. The legal basis for documenting consent is Article 6(1)(f) GDPR.

Note for publication: Keep this section only if the new website actually has a newsletter.

12. Embedded content and external media

This website may embed content from third-party providers, such as videos, maps, images, social media posts or external widgets.

When embedded content is loaded, the third-party provider may process personal data such as your IP address, device information, browser information and usage data. This may also involve cookies or similar technologies.

Where required, external media is loaded only after your consent. The legal basis is Article 6(1)(a) GDPR.

Note for publication: Keep this section if the website embeds YouTube videos, Google Maps, Instagram posts, LinkedIn content or similar. If the website only uses normal outbound links, this section can be shorter.

13. Social media profiles

We maintain online profiles on social media and professional platforms in order to provide information, communicate with interested persons and present professional content.

This may include profiles on platforms such as LinkedIn, Instagram, Facebook or YouTube.

When you visit or interact with our profiles, the platform operators may process personal data independently. This may include profile data, interaction data, device data, usage data and communication content. The platform operators may also process data for analytics, advertising and market research purposes.

For details, please refer to the privacy policies of the respective platform operators.

The legal basis for our own processing in connection with social media communication is Article 6(1)(f) GDPR. Where consent is required, the legal basis is Article 6(1)(a) GDPR.

14. Communication via messenger services

If communication via messenger services is offered, personal data may be processed when you contact us through such services. This may include your name, telephone number, user profile, message content, metadata and attachments.

Please note that messenger providers may process metadata, such as when and with whom communication takes place, and may process data outside the European Union or the European Economic Area.

The legal basis is Article 6(1)(b) GDPR for contractual or pre-contractual communication and Article 6(1)(f) GDPR for general communication.

Note for publication: Delete this section if you do not actively offer WhatsApp, Telegram, Signal, Facebook Messenger or similar contact options on the website.

15. Chat functions and chatbots

If chat functions or chatbot services are used on this website, personal data may be processed to answer enquiries and provide website communication.

This may include contact details, message content, technical data, time of communication and usage data. If the chatbot is provided by an external service provider, this provider may also process data on our behalf.

The legal basis is Article 6(1)(b) GDPR for contractual or pre-contractual enquiries, Article 6(1)(f) GDPR for efficient communication, and Article 6(1)(a) GDPR where consent is required.

Note for publication: Delete this section if the new website does not use a live chat or chatbot.

16. International data transfers

Some service providers may process personal data outside the European Union or the European Economic Area.

Where this happens, we ensure that appropriate safeguards are in place. These may include:

  • An adequacy decision by the European Commission.

  • EU Standard Contractual Clauses.

  • Certification under the EU-US Data Privacy Framework, where applicable.

  • Other safeguards permitted under Articles 44 to 49 GDPR.

The European Commission has adopted an adequacy decision for certified organisations under the EU-US Data Privacy Framework.

17. Data retention

We store personal data only for as long as necessary for the purposes for which it was collected, unless statutory retention obligations or legitimate legal interests require longer storage.

Communication data is generally retained for as long as necessary to respond to the enquiry and manage the relevant relationship. Business communication may be retained longer where required for commercial, tax or legal documentation purposes.

18. Data security

We use appropriate technical and organisational measures to protect personal data against loss, misuse, unauthorised access, disclosure, alteration or destruction.

These measures include, where appropriate, secure transmission, access restrictions, technical safeguards, data minimisation and regular review of security procedures.

19. Your rights

Under the GDPR, you have the following rights, subject to the legal requirements:

  • Right of access, Article 15 GDPR.

  • Right to rectification, Article 16 GDPR.

  • Right to erasure, Article 17 GDPR.

  • Right to restriction of processing, Article 18 GDPR.

  • Right to data portability, Article 20 GDPR.

  • Right to object, Article 21 GDPR.

  • Right to withdraw consent at any time, where processing is based on consent.

The GDPR lists data subject rights in Articles 15 to 21.

To exercise your rights, please contact us using the contact details above.

20. Right to lodge a complaint

You have the right to lodge a complaint with a data protection supervisory authority if you believe that the processing of your personal data violates data protection law.

For Düsseldorf, the competent supervisory authority is generally:

Landesbeauftragte für Datenschutz und Informationsfreiheit Nordrhein-Westfalen
Postfach 20 04 44
40102 Düsseldorf
Germany

The authority’s contact details are published by LDI NRW.

21. Changes to this Privacy Policy

We may update this Privacy Policy if the website, services, technologies or legal requirements change. The version published on this website is the current version.