Privacy Policy of Unwetterzentrale


Last updated: July 5, 2022

Deutsche Übersetzung


1               Introduction

1.1           This Privacy Policy (“Policy”) for the “Unwetterzentrale” Website including Web Portal and Mobile Website (hereinafter equally referred to as “Website”) is made available by DTN Schweiz AG (referred to as “DTN”, “we” or “us”). DTN Schweiz AG is part of a group of companies working under the ‘DTN’ label. The processing of Personal Data (as defined below) by the Website is primarily set out in DTN’s External Privacy Statement  (“DTN Policy”), which is incorporated herein. The Policy in addition sets out how the processing of Personal Data would differ from the practices as set out in the DTN Policy (where this applies) and provides additional information where necessary.

1.2           Certain definitions, words that are written with a capital letter, that are used in this Policy originate from the DTN Policy. This means that you are requested to review the DTN Policy to understand their explanation.

1.3           In case of any conflict between the DTN Policy and the Policy, the Policy prevails.

1.4           This Policy is meant to inform all users of the Unwetterzentrale Website (“Users”) of our privacy practices. In case of any questions, you may contact us via the details as provided in the Policy.

2               Personal Data

2.1           We work with the following definition of “Personal Data”: all information relating to an identified or identifiable natural person. An identifiable natural person is the one who can be identified directly or indirectly, in particular by a reference to an identifier such as a name, an identification number, location data, an online identifier or to one or more factors specific to the physical, psychological, genetic, mental, economic, cultural or social identity of that natural person.

3               Data controller

3.1           The data controller for the processing of Personal Data through the Website is: DTN Schweiz AG (“DTN”), Gaiserstrasse 47, 9050 Appenzell, Switzerland registered at Appenzell Innerrhoden number (UID): CHE-106.725.065.

4               Data Protection Officer

4.1           DTN has appointed a contact person to direct your questions on privacy or the rights you may have to:

Att. Sylvia van Zijderveld
P.O. Box 24092,
3502 MB Utrecht, The Netherlands

4.2           Or email Please note that the legal department of DTN also receives a copy of your message via this email address. We aim to respond within 30 days from the date we receive privacy-related communications.

4.3           For the companies of DTN that are established within the European Economic Area, this contact person is formally appointed as “Data Protection Officer” as set out in the General Data Protection Regulation (“GDPR”).  

5               How and What Personal Data and information we process

5.1           We may process, store and use the following categories of Personal Data
where such is necessary:

5.1.1             User e-mail;

5.1.2             User contact information such as SMS, email, fax and pager messages;

5.1.3             User credentials and user authentication information;

5.1.4             Service data (email address, content of feedback and inquiries, support tickets, emails with or to us);

5.1.5             Location information of device;

5.1.6             Unique device identifiers for advertising and displaying ads;

5.1.7             Device internet protocol (IP) address;

5.1.8             Device Version;

5.1.9             Device Operating System;

5.1.10          The Personal Data on your use of the Website via analytics websites (automatically);

5.1.11          All Personal Data you provide to us and for which we have determined the purposes and the means.

5.2           Should you choose to share further Personal Data via the use of the Website that is not in line with the practices as set out in the Policy and DTN Policy, DTN is not responsible for the processing of such Personal Data in any way.

5.3           Through the Website, DTN does not endeavour to collect any special categories of Personal Data or any sensitive Personal Data.  

5.4           Personal Data and further information is collected via the following sources  

Personal Data may be freely provided by the User, or, in case of data on usage of the Website, collected automatically when using the Website.

5.5           Location Information

We do not use your location information directly via this Website. However, we may use your location information to provide requested location-specific services and radar maps by redirecting you to our Wetter24 Website. By default, permission to use your location information must be granted by the User. If we ask your location, the consent request is prompted from the browser. Once the permission has been given, it can be revoked by the User at any time.




5.6           Service data

DTN may collect service data to operate and improve services, help Users access and use the Website, respond to User inquiries and send communications related to Website. Unwetterzentrale service data is processed and stored in or transmitted via Zendesk Helpdesk  software. DTN retains ownership of and control over User service data in Zendesk. We encourage you to review Zendesk’s privacy policy, available via:


5.7           Platform data

DTN may collect service data to operate and improve the Platforms, help Users access and use the Platforms, respond to User inquiries and send communications related to our Platforms.

5.8           Analytics

We automatically collect Personal Data by using the analytics tools Google Analytics to analyse trends, administer and improve our services, and track Users’ movements around the Website on our behalf. This information will be collected as aggregated anonymous information. The companies that provide these analytics tools may collect and use information under their own privacy policies, which we encourage you to review. For more information about Google Analytics and its privacy policy, please visit the Google Analytics privacy page and/or the Google Partners’ Page. You may opt-out of the processing by Google Analytics by following the instructions on the Google Analytics Web Monitoring Opt-Out page.

5.9           Advertising and marketing services

We may request or may have requested you in the past to send you marketing communications regarding your account or the Website. Permission to send marketing messages must be granted or has been granted in the past by the User and can be revoked by the User at any time. If you wish to opt-out from receiving these types of communications, you may turn them off in your device’s settings or use the opt-out option provided in our marketing communications. 


We use the online advertising services Google Ad Manager, DoubleClick as well as Plista and Publift to present you with advertisements targeted to your interests.

The Google privacy policy regarding advertising is available via:

The DoubleClick privacy policy regarding advertising is available via:

The Plista privacy policy regarding advertising is available via:

The Publift privacy policy regarding advertising is available via:

5.10        Cookies and tracking technologies

We only use cookies for session management. For further information we refer to the DTN Cookie Statement .    


The Website may also contain cookies or similar techniques, placed by third parties, to collect  information and improve the services, such as analysing the use of the Website via Google Analytics as described above.


The cookies set by DoubleClick, Plista and Google Ad Manager are used for serving targeted advertisements that are relevant to you across the web. Targeted advertisements may be displayed to you based on your previous visits to this Website. For example, advertisements about a topic you have expressed an interest in while browsing our site may be displayed to you across the web. In addition, these cookies measure the conversion rate of ads presented to the user.

For further details on cookies used in the Unwetterzentrale Website or on the device’s web browser, please see the table below. For further information we refer to the DTN Cookie Statement .    



Cookie name







This cookie is used to a profile based on user's interest and display personalized ads to the users.

6 months



This cookie is set by The purpose of the cookie is to determine if the user's browser supports cookies.

15 minutes



This cookie is used to assign the user to a specific server, thus to provide a improved and faster server time. It remembers which server had delivered the last page on to the browser. It also helps in load balancing.




This cookie is used for load balancing services provided by Amazon in order to optimize the user experience. Amazon has updated the ALB and CLB so that customers can continue to use the CORS request with stickness.

7 days



AWSALB is a cookie generated by the Application load balancer in the Amazon Web Services. It works slightly different from AWSELB.

7 days



Google Funding Choices

12 hours



Google Funding Choices

1 year



This cookie is set by Google Analytics and is used to distinguish users and sessions. The cookie is created when the JavaScript library executes and there are no existing __utma cookies. The cookie is updated every time data is sent to Google Analytics.

2 years



The cookie is set by Google Analytics and is deleted when the user closes the browser. The cookie is not used by ga.js. The cookie is used to enable interoperability with urchin.js which is an older version of Google analytics and used in conjunction with the __utmb cookie to determine new sessions/visits.




This cookie is set by Google analytics and is used to store the traffic source or campaign through which the visitor reached your site.

6 months



The cookie is set by Google Analytics and is used to throttle request rate.

10 minutes



The cookie is set by Google Analytics. The cookie is used to determine new sessions/visits. The cookie is created when the JavaScript library executes and there are no existing __utma cookies. The cookie is updated every time data is sent to Google Analytics.

30 minutes



This cookie is installed by Google Analytics. The cookie is used to calculate visitor, session, campaign data and keep track of site usage for the site's analytics report. The cookies store information anonymously and assign a randomly generated number to identify unique visitors.

2 years



This cookie is installed by Google Analytics. The cookie is used to store information of how visitors use a website and helps in creating an analytics report of how the website is doing. The data collected including the number visitors, the source where they have come from, and the pages visited in an anonymous form.

1 day



Quantcast ID for the session



6               How We Use Personal Data – purposes of processing

6.1           We process your Personal Data for the following purposes:

6.1.1             Allowing us to provide the Website and connected services to you, such as by allowing you to retrieve information based on a location as provided by you, to allow you to store and track information about you and your business and to manage your inventory, and to allow you to use the Website and connected services;

6.1.2             Allowing us to provides SMS, email, fax and pager messages to you when there is a severe weather event.

6.1.3             To allow you to set the language and other preferences in the Website;

6.1.4             To comply with our legal obligations; 

6.1.5             To analyse the use of the Website;

6.1.6             To be able to communicate with you and to answer any questions you might have;

6.1.7             Allowing us to enable trouble shooting including diagnostics logging and debugging, user database management and infrastructure monitoring;

6.1.8             To allow us to improve the performance of the Website and connected services;

6.1.9             Allowing us to notify you of updates to the Website and offer new products, services, mobile Websites, and/or recommendations to you.            

6.1.10          Allowing us to serve targeted advertisements that are relevant to you across the web.

6.2           We will only use Personal Data for the purposes which we collected it for. It may however be possible that we reasonably consider that we need to use it for another purpose, which is compatible with the initial purpose. If we need to use your Personal Data for an unrelated purpose, we will notify you.

6.3           Your Personal Data is not sold to any third party or shared with third parties without your permission, other than for the limited exceptions and purposes in this Policy and the DTN Policy or as otherwise permitted by applicable law.

7               Legal grounds

7.1           We may rely on the following legal grounds when we process your Personal Data:

7.1.1             To perform the contract as we have entered into with you, concerning the safe and reliable access to and use of the Website (art. 6(1)(b) GDPR);

7.1.2             To comply with a legal obligation to which DTN is subject (art. 6(1)(c) GDPR);

7.1.3             For the purposes of legitimate interests as pursued by DTN (art. 6(1)(f) GDPR). These legitimate interests include: to analyse the use of the Website, to be able to communicate with you, to deliver our connected services, to enable trouble shooting including diagnostics logging and
user database management, infrastructure monitoring, to respond to customer service requests, allowing us to send notifications, targeted advertisements, and allowing us to improve the performance of the Website and connected services.   

8               Recipients of Personal Data

8.1           In addition to DTN, in some cases, the Personal Data may be accessible by external parties (such as third-party technical service providers, mail carriers, hosting providers, IT companies, communications agencies) appointed, if necessary, as data processors (as stipulated in the GDPR) by DTN. For third-party service providers receiving Personal Data to support the Platforms and our internal business operations please see the table below.




Targeted advertising.


Targeted advertising.

Google Ad Manager

Targeted advertising.

Google Analytics

Analysing trends and improve our Web services.


Hosting of databases (user data is stored in MySQL database hosted on AWS)

Further categories of recipients are indicated in Table 1 of our global DTN External Privacy Statement.

8.2           With your consent, and with an opportunity for you to withdraw consent, we may share your information with third parties for marketing purposes, as permitted by law.

8.3           Third-Party Plugins and Enhancements

In order to provide the Services and Platforms we may utilize third-part plug-ins and enhancements (for e.g. social media plugins). We do not share information with these third-party plug-in providers and do not control what, if any, Personal Data they collect or how they use it. Your usage of our Platforms and Services may result in you sharing your Personal Data with one of these third parties. Any data collection by these third parties is governed by the relevant third party and not by us. For a list of third-party enhancement and plug-in providers as of the date of this posting, please see the table below. Because your interaction with these third parties may not be readily apparent, we encourage you to view all of their respective privacy policies prior to utilizing our Services or Platforms.

Enhancement/Plugin Provider



Social Media


Social Media

9               Transfer of Personal Data

9.1           Personal Data that is generated through the use of the Website may be stored on locations other than where it was initially collected. When transferred, we will ensure the DTN Policy and applicable laws and legislations, such as the GDPR, are complied with. Where applicable, you may obtain a copy of the applicable safeguards. Please consult the DTN Policy for more information.   

10             Retention

10.1        DTN will retain your Personal Data for as long as necessary for the purposes we collect it for.

Session data: Personal Data that is collected only to be used during one session of using the Website, this Personal Data may only be available during the session;

10.2        For further specific retention times, please consult the DTN Policy.

11             Security Measures

11.1        DTN takes appropriate security measures to prevent unauthorized access, disclosure, modification, or unauthorized destruction of the Personal Data. Please consult the DTN Policy  for more information.

12             Your Obligations and Rights

12.1        Under circumstances, you have the right of access, rectification, erasure, restriction of and objection to processing of Personal Data, the right to data portability, the right to withdraw any consent at any time without affecting the lawfulness of processing based on consent before such withdrawal and the right to lodge a complaint with a supervisory authority.

12.2        To invoke your rights please be referred to section 17 of the DTN Policy . You may contact us by using the information provided in this Policy or the DTN Policy.

12.3        Unless specified otherwise, Personal Data requested when using the Website is voluntary, which means that it is not a statutory or contractual requirement, or a requirement necessary to enter into a contract. Users are free not to provide such Personal Data without consequences to the availability or the functioning of the Website or connected services. Where the provision of Personal Data is mandatory, such requirement is stated. In that case, failure to provide such Personal Data may make it impossible for the Website to work properly or for us the provide any connected services to you.

12.4        DTN does not conduct any automated decision making through or for the Website, including profiling.

13             Policy Changes & Updating Information

13.1        DTN reserves the right to modify this Policy whenever the need arises. Updates to this Policy will be posted to the Website in a timely manner. When such updates are made, the “last updated” date at the top of this Policy will be modified. This policy is not a contractual agreement and does not provide you with any legal right. Unless otherwise specified, the Website, its content, and its domain name and URLs are the sole property of DTN.

14             Questions

14.1        Should you have any questions, you may contact us via the following details:

DTN Schweiz AG
ATTN: Privacy/Marketing
Gaiserstrasse 47

9050 Appenzell, Switzerland   

14.2        DTN will investigate and attempt to resolve complaints and disputes regarding use and disclosure of Personal Data by reference to the principles contained in this Policy.