We use third-party content and services on the Platform to analyse and improve the Platform. For this purpose, we also use cookies from these third-party providers to integrate their content or service. These are the following providers:

Google Analytics

We work with Google Analytics. This is a web analytics service provided by Google Inc. (1600 Amphitheater Parkway, Mountain View, CA 94043, USA; "Google"). The information generated by the Google Analytics cookie about your use of our website is usually transmitted by Google to a server in the USA and stored there. IP anonymization is activated on our websites, so that the IP address of Google users in member states of the European Union or other contracting states of the Agreement on the European Economic Area is abbreviated in advance. Only in exceptional cases will the complete IP address be sent to a Google server in the USA and shortened there. Google uses this information on our behalf to evaluate your use of the website, to create reports on website activity and to provide us with other services related to website and internet use. The IP address provided by Google Analytics as part of Google Analytics will not be merged with other Google data. You can prevent the storage of cookies by making a corresponding setting in your browser software. However, we would like to point out that in this case you may not be able to use all the functions of this website to their full extent.

You can also prevent Google from collecting and processing the data generated by the cookie in connection with your use of the website (including your IP address) by installing the browser plug-in available under the following link:

Google is certified under the Privacy Shield agreement and thereby offers a guarantee of compliance with European data protection law (


We also use a product and web analysis tool from Mixpanel Inc., One Front Street, 28th floor , San Francisco, CA 94111, USA ("Mixpanel") on our website and service platform. If a user uses our service platform or website, we store information on user behavior, which in turn is recorded in so-called "events". This recorded and stored information and data is largely anonymised and transmitted to the Mixpanel analysis tool. Mixpanel then creates the key figures and statistical values relevant to us. The processing of this data serves our legitimate interest, namely optimizing our products and services and ensuring a pleasant surfing experience for all users. The legal basis for data processing is Article 6 Paragraph 1 Letter b GDPR. The information is automatically deleted after the session has ended. A transmission of the information and data in the USA cannot be ruled out. We have agreed extensive data processing agreements and Standard Contractual Clauses (“SCC”) with Mixpanel. Mixpanel guarantees us that the data processing takes place at the level of the EU standard. You can find more information about Mixpanel under the following link:

Google Recaptcha

Our primary goal is to secure and protect our website for you and for us in the best possible way. To ensure this, we use Google reCAPTCHA from Google Inc. The company Google Ireland Limited (Gordon House, Barrow Street Dublin 4, Ireland) is responsible for all Google services in Europe. With reCAPTCHA we can determine if you really are a real human being and not a robot or other spam software. We understand spam to mean any unwanted information that is sent to us electronically, unsolicited. With the classic CAPTCHAS, you usually had to solve text or image puzzles to check them. With reCAPTCHA from Google, we don't have to bother you with such puzzles most of the time. In most cases, it is sufficient if you simply tick the box and confirm that you are not a bot. With the new Invisible reCAPTCHA version, you don't even have to check the box. You can find out exactly how this works and, above all, what data is used for this in the course of this data protection declaration.

What is reCAPTCHA?

reCAPTCHA is a free captcha service provided by Google that protects websites from spam software and abuse by non-human visitors. Most often, this service is used when filling out forms on the Internet. A captcha service is a type of automated Turing test designed to ensure that an action on the internet is being performed by a human and not a bot. In the classic Turing test (named after the computer scientist Alan Turing), a human determines the difference between a bot and a human. In the case of captchas, the computer or a software program also takes care of this. Classic captchas work with small tasks that are easy for humans to solve, but present significant difficulties for machines. With reCAPTCHA you no longer have to actively solve puzzles. The tool uses modern risk techniques to distinguish humans from bots. Here you only have to tick the text field "I'm not a robot" or with Invisible reCAPTCHA even that is no longer necessary. With reCAPTCHA, a JavaScript element is integrated into the source text and then the tool runs in the background and analyzes your user behavior. The software calculates a so-called Captcha score from these user actions. Google uses this score to calculate the probability that you are a human before entering t he Captcha. reCAPTCHA or Captchas in general are always used when bots could manipulate or misuse certain actions (such as registrations, surveys, etc.).

Why do we use reCAPTCHA on our website?

We only want to welcome flesh and blood people to our site. Bots or spam software of all kinds can safely stay at home. That's why we're doing everything we can to protect ourselves and offer you the best possible user experience. For this reason we use Google reCAPTCHA from Google. So we can be pretty sure that we remain a "bot-free" website. By using reCAPTCHA, data is transmitted to Google to determine whether you are really a human being. reCAPTCHA therefore serves to ensure the security of our website and subsequently also your security. For example, without reCAPTCHA it could happen that a bot registers as many email addresses as possible during registration in order to then "spam" forums or blogs with unwanted advertising content. With reCAPTCHA we can avoid such bot attacks.

What data is stored by reCAPTCHA?

reCAPTCHA collects personal data from users in order to determine whether the actions on our website actually originate from people. The IP address and other data required by Google for the reCAPTCHA service may therefore be sent to Google. IP addresses are almost always shortened beforehand within the member states of the EU or other contracting states to the Agreement on the European Economic Area before the data ends up on a server in the USA. The IP address is not combined with other data from Google unless you are logged in with your Google account while using reCAPTCHA. First, the reCAPTCHA algorithm checks whether Google cookies from other Google services (YouTube. Gmail, etc.) are already placed on your browser. Then, reCAPTCHA sets an additional cookie in your browser and captures a snapshot of your browser window.

The following list of collected browser and user data does not claim to be complete. Rather, they are examples of data that, to our knowledge, are processed by Google.

  • Referrer URL (the address of the page from which the visitor comes)
  • IP address (e.g.
  • info about the operating system (the software that allows your computer to operate. Well-known operating systems are Windows, Mac OS X or Linux)
  • Cookies (small text files that store data in your browser)
  • Mouse and keyboard behaviour (every action you perform with the mouse or keyboard is saved)
  • Date and language settings (which language or date you have preset on your PC will be saved).
  • All JavaScript objects (JavaScript is a programming language that allows websites to adapt to the user. JavaScript objects can collect all kinds of data under one name).
  • Screen resolution (shows how many pixels the image display consists of)

It is undisputed that Google uses and analyses this data even before you click on the "I am not a robot" checkbox. With the Invisible reCAPTCHA version, even the ticking is omitted and the entire recognition process runs in the background. Google does not tell you in detail how much and which data it stores.

The following cookies are used by reCAPTCHA: Here we refer to the reCAPTCHA demo version from Google at. . All these cookies require a unique identifier for tracking purposes. Here is a list of cookies that Google reCAPTCHA has set on the demo version:



Intended use

Expiration Date




This cookie is set by DoubleClick (also owned by Google) to register and report the actions of a user on the website when dealing with advertisements. In this way, the effectiveness of the advertising can be measured and appropriate optimization measures can be taken. IDE is stored in browsers under domain. Expiry date: after one year

after one year

This list cannot claim to be complete, as experience has shown that Google changes the choice of its cookies again and again.



This cookie collects statistics on website usage and measures conversions. A conversion occurs, for example, when a user becomes a buyer. The cookie is also used to display relevant advertisements to users. Furthermore, the cookie can be used to prevent a user from seeing the same ad more than once.

after one month



We were not able to find out much information about this cookie. In Google's privacy policy, the cookie is mentioned in connection with "advertising cookies" such as "DSID", "FLC", "AID", "TAID". ANID is stored under domain

after 9 months


The cookie stores the status of a user's consent to use various Google services. CONSENT is also used for security purposes to verify users, prevent login fraud and protect user data from unauthorised attacks.

after 19 years



NID is used by Google to customise ads to your Google searches. With the help of the cookie, Google "remembers" your most frequently entered search queries or your previous interaction with ads. This way you will always get tailored ads. The cookie contains a unique ID to collect the user's personal settings for advertising purposes.

after 6 months



Once you have ticked the "I am not a robot" box, this cookie is set. The cookie is used by Google Analytics for personalised advertising. DV collects information in an anonymous form and is also used to make user distinctions.

after 10 minutes

How long and where is the data stored?

By inserting reCAPTCHA, data is transferred from you to the Google server. Where exactly this data is stored, Google does not make clear, even after repeated enquiries. Without having received confirmation from Google, it can be assumed that data such as mouse interaction, time spent on the website or language settings are stored on Google's European or American servers. The IP address that your browser transmits to Google is generally not merged with other Google data from other Google services. However, if you are logged into your Google account while using the reCAPTCHA plug-in, the data will be merged.**The deviating data protection regulations of the Google company apply.

How can I delete my data or prevent data storage?

If you do not want any data about you and your behaviour to be transmitted to Google, you must log out of Google completely and delete all Google cookies before you visit our website or use the reCAPTCHA software. In principle, data is automatically transmitted to Google as soon as you visit our site. To delete this data again, you must contact Google support at contact.

Therefore, by using our website, you consent to the automatic collection, processing and use of data by Google LLC and its agents.

You can learn a little more about reCAPTCHA on Google's web developer page at . Google does go into more detail here about the technical development of reCAPTCHA, but you will search in vain for precise information about data storage and privacy-related topics there as well. A good overview of Google's basic use of data can be found in the company's own privacy policy at .