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Information on the processing of personal data

In the following, Netstag GmbH, Große Bleiche 10, 55116 Mainz (short: "Netstag", "we" or "us") informs you about the collection of personal data during the use of these Internet pages.

In order to make this information about the processing of personal data more understandable, we offer you simplified summaries of the respective sections in some places in the highlighted text fields. Even if we offer you the summary, it is important and necessary that you read the only relevant information about the processing of personal data in its entirety.

  1. valid range
  2. responsibility
  3. hosting
  4. personal data
  5. your rights
  6. your establishment of contact
  7. service provider
  8. our handling of your data
  9. storage duration and storage periods
  10. use of cookies
  11. recipients or categories of recipients
  12. use of Google Analytics
  13. use of Facebook Remarketing and Custom Audiences
  14. use of Intercom
  15. other automatic data collection tools
  16. SSL encryption
  17. Google / GSuite API usage
  18. data protection officer
  19. reserve the right to modify this information
  20. social media data protection
  21. contact

1. Valid range

This privacy policy applies to the Netstag website and the personal data collected via this website.

For Internet pages of other providers, which may be referred to via links, the data protection information and declarations provided there alone apply.

2. Responsibility

Responsible for the processing of personal data on these Internet pages in the sense of the data protection basic regulation (short: "DSGVO") is:

Netstag GmbH
Große Bleiche 10,
55116 Mainz

Managing director with power of representation

Tao Bauer
Andreas Schröder
Peer Wierzbitzki


3. Hosting

Microsoft Azure Microsoft Corporation
One Microsoft Way
Redmond, WA 98052-6399

The company has been retained on our behalf and in accordance with our specifications by the Open Telekom Cloud as a technical service provider with whom a contract processing agreement has been concluded.

Telekom Deutschland GmbH merely provides us with the storage space to operate these Internet pages and does not receive any personal data from us. The involvement of this service provider is in our legitimate interest (Art. 6 Para. 1 lit. f. GDPR) for the presentation, maintenance and operation of these Internet pages.

4. Personal data

Personal data is all data that can be related to you personally, e.g. name, address, e-mail address, user behaviour.

According to Article 4 of the GDPR, personal data is any information relating to an identified or identifiable natural person; an identifiable natural person is one who can be identified directly or indirectly, in particular by reference to an identifier such as a name, an identification number, location data, online identifier or one or more specific characteristics that express the physical, physiological, genetic, psychological, economic, cultural or social identity of that natural person.

5. Your rights

You can assert all your rights:

  • Request information
  • Correct or delete the data
  • Restrict data processing
  • Lodge an appeal against the processing
  • Withdraw your consent for processing
  • Request data transfer to you and possibly to another company
  • Submit a complaint to the data protection supervisory authority

Please contact us at the following address:

Netstag GmbH
Große Bleiche 10,
55116 Mainz

As a user of our website, you have various rights under the GDPR, in particular arising from Articles 15 to 18, 20, 21 and 77 of the GDPR:

a. Right to information:
You may request information about your personal data processed by us. You should specify your request in your request for information in order to make it easier for us to compile the necessary data.

b. Right to rectification:
If the information concerning you is (no longer) accurate, you may request correction. If your data is incomplete, you may request it to be completed.

c. Right to cancellation:
You can demand the deletion of your personal data under the conditions of § 17 GDPR. Your right to deletion depends, among other things, on whether the data concerning you is covered by a right of retention or whether we still need it to fulfil our legal obligations.

d. Right to limitation of processing:
You have the right, within the framework of the provisions of Art. 18 GDPR, to restrict the processing of your personal data.

e. Right to appeal:
You have the right, for reasons arising from your particular situation, to object at any time to the processing of the data concerning you. This applies in particular if we process your data out of a justified interest. However, we cannot always comply with this, e.g. if we are obliged to collect the data for auditing purposes in accordance with the provisions of tax law. In this case, however, the data will be blocked for further use and deleted at the end of the statutory retention period.

f. Right of revocation:
If you have given us permission to process your data, you have the right to revoke this permission at any time. This does not affect the legality of the consent until you revoke the processing.

g. Right to data transferability:
You have the right to receive the data concerning you that you have provided to us in a structured, common and machine-readable format. If you have provided the data on the basis of consent or a contract, you have the right for us to transfer the data to a person named by you.

f. Right to complain:
If you are of the opinion that we have not complied with data protection regulations when processing your data, you can lodge a complaint with a data protection supervisory authority, which will examine your complaint.

A list of the addresses of the data protection supervisory authorities can be found at:

6. Your contact

If you contact us on your own initiative, we only store your data to process your request. The data will then be deleted at regular intervals if we are not required to do so by law.

When you contact us (e.g. by e-mail or via our contact forms), only the data and messages you provide (your e-mail address, your name and any other information you may have voluntarily provided) will be stored by us in order to process your request (e.g. contact request, request for advice, request for a brochure).

We will delete the data collected in connection with establishing contact after storage is no longer required, or restrict processing if there are legal storage obligations.

The transmission of your data as a result of an enquiry is voluntary by you, so that you simultaneously give your consent (legal basis is Art. 6 Para. 1 S. 1 lit. a GDPR). In addition, we have a legitimate interest in the processing of the data pursuant to Art. 6 para. 1 sentence 1 lit. f GDPR, as we wish to answer or process your enquiry. If your request is aimed at the conclusion of a contract, the legal basis according to Art. 6 Para. 1 S.1 lit. b GDPR for the processing of the data is also given.

7. Service provider

We will only pass on your data to any service providers named in this information. Beyond that we do not pass on any data without your consent.

If we use contracted service providers for individual functions of our offer or would like to use your data for advertising purposes, we will inform you below in detail about the respective processes. A further transfer to other third parties will not take place without your consent.

8. Our handling of your data

We process data from you when you:

  • visit our website
  • communicate with us

We process data to create static values by using a cookie and when you visit our website, a log file is created containing information that your browser sends us, such as the time of access and the amount of data transferred.

When using the website for information purposes only, i.e. if you do not register or otherwise provide us with information, we only collect the non-personal access data that your browser transmits to our server (so-called "log files").

Whenever an Internet file is requested, the following non-personal access data is stored:

  • the page from which the file was requested,
  • is the name of the called file,
  • the date and time of the request,
  • the amount of data transferred,
  • the access status (file transferred, file not found, etc.),
  • the type of access (GET, POST),
  • the browser or operating system used,
  • the anonymous IP address of the requesting computer,
  • the session ID
  • cookies

For reasons of data security, i.e. to clarify unauthorised access or prevent misuse of the website, the anonymous IP address of the requesting computer is recorded, stored and automatically deleted 90 days after the end of access.

If you would like to view our website, we collect the following data, which is technically indispensable for us in order to display our website to you and to ensure the improvement of stability, functionality and security for both sides, so that this data is collected on the basis of a justified interest on both sides (legal basis is Art. 6 Para. 1 S. 1 lit. f GDPR). These data will not be passed on to third parties.

9. Storage duration and storage periods

The data collected within the scope of enquiries (e.g. by e-mail) will be stored for a period of 3 months unless we have a right or obligation to retain data due to laws.

All periods begin at the end of the month in which the processing of the request is completed.

In all other respects, the duration of the storage of personal data shall be measured on the basis of the statutory rights and duties of retention (e.g. from commercial or tax law). After expiry of this period, the data will be deleted at the end of the month, unless they are necessary for the initiation, execution and termination of a contract and / or there is no justified interest on our part in the processing.

10. Use of cookies

We use cookies, which are absolutely necessary for the operation of these Internet pages.

You can find all information on this subject and the possibility of adjusting your cookie settings at any time in our cookie settings at

11. Recipients or categories of recipients

As a rule, personal data that you provide us with about yourself will only be processed by us. In order to fulfil our tasks and obligations, however, it may be necessary for us to disclose your stored personal data to natural and legal persons, authorities, institutions or other bodies. In particular, the following categories of recipients can be considered:

  • Courts (e.g. for litigious proceedings)
  • Non-public sector bodies in so far as they are contract processors
  • Lawyers, tax consultants, notaries, auditors


12. Use of Google Analytics

With your consent, we use the web analysis service of Google Analytics, with the help of which your surfing behaviour on our Internet pages is anonymously analysed by setting so-called "cookies" and made available to us so that we can constantly improve our homepage and our service.

You can revoke your consent at any time and prevent the analysis by Google Analytics for our and all third party websites by downloading and installing a browser application. You will find the browser application under the following link:

This website uses Google Analytics, a web analysis service provided by Google Inc. (short: "Google"). Google Analytics uses "cookies" (see above under § 10 lit. d), which are text files placed on your computer, to help the website analyze how users use the site. The information generated by the cookie about your use of the website will generally be transmitted to and stored by Google on servers in the United States. However, if IP anonymisation is activated on this website, your IP address will be truncated by Google in advance within member states of the European Union or in other signatory states to the Agreement on the European Economic Area. Only in exceptional cases will the full IP address be transmitted to a Google server in the USA where it will be shortened. On behalf of the operator of this website, Google will use this information to evaluate your use of the website, to compile reports on website activity and to provide other services relating to website activity and internet usage to the website operator.

The IP address transmitted by your browser as part of Google Analytics is not combined with other data from Google.

You may refuse the use of cookies by selecting the appropriate settings on your browser, however please note that if you do this you may not be able to use the full functionality of this website. You can also prevent Google from collecting the data generated by the cookie and related to your use of the website (including your IP address) and Google from processing this data by downloading and installing the browser plug-in available under the following link:

This website uses Google Analytics with the extension "_anonymizeIp()". This means that IP addresses are shortened for further processing and that it is not possible to identify you personally. If the data collected about you is related to a person, this is excluded immediately and the personal data is deleted immediately.

We use Google Analytics to analyse and regularly improve the use of our website. The statistics obtained allow us to improve our services and make them more interesting for you as a user.

For the exceptional cases in which personal data is transferred to the USA, Google has submitted to the EU-US Privacy Shield,

In addition, we have concluded a contract with Google for order data processing as well as the EU standard contract clauses and fully implement the strict requirements of the German data protection authorities when using Google Analytics.

The legal basis for the use of Google Analytics is your consent, Art. 6 Para. 1 S. 1 lit. a GDPR.

You can revoke your consent at any time using the contact details below or use the browser plug-in mentioned above to avoid Google Analytics.

Third party information: Google Dublin, Google Ireland Ltd, Gordon House, Barrow Street, Dublin 4, Ireland, Fax: +353 (1) 436 1001.

Terms of use:,

Overview of data protection:,

and the privacy policy:

This website also uses Google Analytics for a cross-device analysis of visitor flows, which is carried out using a user ID. You can deactivate the cross-device analysis of your usage in your customer account under "My data", "Personal data".

13. Use of Facebook Remarketing and Custom Audiences

Facebook remarketing tags are integrated on our website. When you visit our pages, remarketing tags establish a direct connection between your browser and the Facebook server. Facebook receives the information that you have visited our site with your IP address. This allows Facebook to associate visits to our pages with each visit. We can use the information obtained in this way to display Facebook Ads. If you do not want Custom Audience data collection, you can disable Custom Audiences on the following page using the Facebook Privacy Statement here:

14. Use of Intercom

a. We provide you with Intercom's live chat on our website, which allows us to contact visitors to the website and answer questions. The legal basis for the processing of your data is Art. 6 Par. 1 S. 1 lit. f GDPR. During the chat connection, the location, IP address, browser and website visited are displayed and stored by us. Further information about Intercom Live Chat can be found in Intercom's privacy policy. An order processing contract has been concluded for the processing and storage of the data.

b. Intercom automatically deletes the IPs and geographical data of visitors who have not visited our website for 9 months.

15. Other automatic data collection tools

a. Web-Beacons:
We use web beacons and also allow selected third parties to use them (often in combination with cookies) to collect information about your use of the Site and your interactions with e-mails and other communications. This is to measure performance and provide you with content and advertisements that are most relevant to you. A web beacon (also known as a tracking pixel or pixel tag) is typically a transparent graphic (typically only 1 x 1 pixel in size) that can be embedded into online content, video, and email. It allows the server to retrieve various types of information from your device, to know when you read certain content or a specific email message, to determine the date and time the web beacon was displayed, and to determine your device's IP address. For example, we may include web beacons in our promotional emails or newsletters to determine whether the message has been opened or edited and whether our mailing tools are functioning properly.

16. SSL encryption

This site uses SSL encryption for data security reasons and to protect the transmission of confidential content, such as requests you send to us as a site operator. You can recognize an encrypted connection by the fact that the address line of the browser changes from "http://" to "https://" and by the lock symbol in your browser line. If SSL encryption is activated, the data you transmit to us cannot be read by third parties.

(Here I noticed that the Kassel homepage has no SSL encryption.)

17. Google / GSuite API usage

Mailtastic offers the option to connect to your GSuite account.

The connection has two functions:

1. transfer the user data to Mailtastic
The selected user data is transferred to Mailtastic and is used there for the purpose of generating our signatures.
It is about: E-mail address, first name, surname, organizational unit, telephone numbers, business addresses, user picture

2. transfer the signature to the user
The data can be deleted from Mailtastic at any time by the Mailtastic Admin and the connection to Suite can be stopped at any time.

18. Data protection officer

The person responsible must provide the contact details of his data protection officer, who may be appointed in accordance with Art. 37 GDPR.

Currently we are not obliged to appoint a data protection officer according to Art. 37 GDPR.

19. Reservation of the right to change this information

Changes in the legal situation or laws may make it necessary to adapt this information. We therefore kindly ask you to take note of this information each time you visit our website.

20. Social Media Data Protection

For our social media privacy visit:

21. Contact

If you have any questions regarding data processing or the assertion of your rights mentioned above, please contact us:

Netstag GmbH
Große Bleiche 10,
55116 Mainz


latest update: March 2020