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GROSSBYTE

Privacy Policy

1. Controller

Christopher Groß
c/o IP-Management #9857
Ludwig-Erhard-Str. 18
20459 Hamburg
Germany

Email: moin@grossbyte.io

2. Data collected

Contact form

When you write to me via the contact form on this website, the following data is processed:

  • Name
  • Email address
  • Message

All fields are required, as I cannot answer your enquiry otherwise. Using the form is voluntary – you can also email me directly.

The processing is carried out to respond to your enquiry on the basis of Art. 6 para. 1 lit. b GDPR (pre-contractual measures) or Art. 6 para. 1 lit. f GDPR (legitimate interest in answering enquiries).

Server logs

When you visit this website, the following data is automatically collected and stored in server log files:

  • IP address (anonymised)
  • Date and time of access
  • Accessed URL
  • Browser type and version
  • Operating system

Storage is based on Art. 6 para. 1 lit. f GDPR to ensure the security and stability of the website.

SSL/TLS encryption

For security reasons, this website uses SSL/TLS encryption. You can recognise an encrypted connection by "https://" in your browser's address bar. Data you send to this website – for example via the contact form – cannot be read by third parties.

3. Purpose of processing

The data collected via the contact form is used exclusively to respond to your enquiry. It is not passed on to third parties unless this is necessary to provide the service (see section 4).

4. Disclosure to third parties

Email delivery via Brevo

Messages from the contact form are transmitted via the service Brevo (Sendinblue SAS, 106 Boulevard Haussmann, 75008 Paris, France). Brevo processes the name, email address and message content. There is a data processing agreement in accordance with Art. 28 GDPR. Data processing takes place within the EU.

Further information: brevo.com/legal/privacypolicy

Hosting

This website is hosted by Hetzner Online GmbH, Industriestr. 25, 91710 Gunzenhausen, Germany. Access data (server logs) is processed in the process. There is a data processing agreement in accordance with Art. 28 GDPR.

Fonts and icons

Fonts and icons are served directly from this server. No connections to third-party providers such as Google Fonts are made when you visit the website.

5. Appointment booking and external links

Appointment booking via Proton Calendar

To book a call, I link to the booking page of Proton Calendar (Proton AG, Route de la Galaise 32, 1228 Plan-les-Ouates, Switzerland). The page is not embedded in this website – you are only forwarded to Proton when you click the link. There, you enter the details for the appointment (e.g. name and email address) directly with Proton. Proton's privacy policy applies: proton.me/legal/privacy

The processing is carried out to arrange a call on the basis of Art. 6 para. 1 lit. b GDPR (pre-contractual measures). Switzerland is covered by an adequacy decision of the European Commission.

This website contains simple links to my profiles on GitHub, LinkedIn and Malt. These are normal links, not embedded content or plugins – no data is transferred to these providers when you visit this website. Only when you click a link do the privacy policies of the respective provider apply.

6. Storage duration

Data from the contact form will be deleted as soon as the enquiry has been finally processed and there are no statutory retention obligations to the contrary.

Server log data is automatically deleted after 7 days.

7. Your rights

In accordance with the GDPR, you have the following rights:

  • Access (Art. 15 GDPR): Right to information about the data stored about you
  • Rectification (Art. 16 GDPR): Right to correct incorrect data
  • Erasure (Art. 17 GDPR): Right to have your data deleted
  • Restriction (Art. 18 GDPR): Right to restrict processing
  • Data portability (Art. 20 GDPR): Right to receive your data in a common format
  • Objection (Art. 21 GDPR): Right to object to the processing

To exercise your rights, just email me at: moin@grossbyte.io

You also have the right to lodge a complaint with the competent data protection supervisory authority:

Der Hamburgische Beauftragte für Datenschutz und Informationsfreiheit
Ludwig-Erhard-Straße 22, 7. OG
20459 Hamburg, Germany
datenschutz-hamburg.de

8. Cookies and local storage

This website does not use tracking or marketing cookies and no analytics tool. Only data required for the website to function is stored in your browser:

  • Language selection (cookie i18n_redirected): remembers the language you use the website in, so you are not redirected on every visit.
  • Accessibility mode (local storage gb-a11y-mode): remembers whether you have switched on the accessibility mode. This value stays in your browser and is not sent to the server.

Storage is based on § 25 para. 2 no. 2 TDDDG (German Telecommunications Digital Services Data Protection Act), as it is strictly necessary for the function you requested. You can delete cookies and local data at any time in your browser settings.

Last updated: November 2026