Cookie Policy

Information on the Use and Application of Cookies for Online Services (Websites, Apps, Social Networks)

Cookies, Web Tracking and Web Analytics

ZEISS online services use cookies, pixels and other similar technologies (collectively called "cookies" from now on) to recognize your browser or device, to learn more about your interests and to provide you with essential functions and services as well as for other purposes.

Cookies have the advantage that they enable you to use many of our offerings (services/features). If you do not allow cookies to be placed or reject cookies in any way, it is not possible, for example, to use various aspects of our online services or to use other products or services that require cookies.

Approved third party providers may also place cookies when you interact with ZEISS services. Third party providers include search engines, measurement and analysis service providers, social media networks and advertising companies. Third parties use cookies to provide content, including ads, that is relevant to your interests, to measure the effectiveness of their ads, and to provide services on behalf of ZEISS. For more information about third parties who may place cookies, please refer to the "Partners" section in the "Tracking and Cookie Technologies" section.

In certain cases, the data collected can be used to identify the visitor. The data collected is used to improve the offering or target customers. IP addresses are generally shortened or only processed in an anonymous form.

Depending on their function and purpose, cookies can be grouped into different categories: strictly necessary cookies, functional cookies, performance or analytical cookies, cookies for marketing purposes and social media cookies.

Essential cookies
Essential cookies are necessary to allow you to navigate through a website and use the features built into it. Without these cookies, the website's functionality cannot be guaranteed. This means that certain actions performed by the user (e.g. text input, configuration options) are not stored as the user navigates to other pages on the website.

Functional cookies
Functional cookies make it possible for a website to store information provided by the user (e.g. username, language selection, current location) to improve the user's browsing experience and personalize the functionality of the website. For example, a website can provide the user with local pricing information if a cookie is used to store the region that the user is in. Functional cookies are also used to perform commands such as playing videos. These cookies collect information in anonymous form and cannot be used to track your use of other websites.

Performance Cookies
Performance cookies collect information about how a website is used (e.g. information about which pages the visitor visits most frequently and whether or not the user receives any error messages). These cookies do not store any information which could be used to identify the user. The collected information is aggregated and anonymized. These cookies are used exclusively to improve the performance of the website and, hence, the user's experience.

Cookies for marketing purposes
Cookies for marketing purposes are used to present users with advertising which is relevant to them and which is tailored to their interests. They are also used to limit the number of impressions of an ad and to measure the effectiveness of advertising campaigns. They register whether a user has visited a page or not. This information can then be shared with advertisers. These cookies are used to improve the relevance of advertising and are linked in part to page functionalities of third parties.

How does ZEISS use cookies?

Cookies are used to survey access to our online services and to implement functionalities intended for social media and marketing. We also forward information to our partners for analytical, marketing and social media purposes. Our partners may merge this information with other data you provide or others they may have collected through the use of their services. You can object to this use to different degrees. To do this, please select your personal preference.

ZEISS uses cookies in a number of ways and for the following purposes:

  • To authenticate and identify you when you use one of our websites or applications, so that we can provide you with the services you have requested
  • To provide the ZEISS websites and applications you use
    To store your settings or record the point at which you stopped using a ZEISS website or application
  • To measure your use of ZEISS websites and applications so that we can improve our websites and on-line services and adjust them to suit your likely interests.
  • To understand what your interests likely are so that we can present you with relevant information when you visit ZEISS websites
  • To provide content, including advertisements, that is relevant to your interests on ZEISS websites and third-party websites and generate reports. This allows us to measure and analyze the performance of our services.
  • To prevent fraud and improve security.
  • To undertake research and diagnostics to improve content, products and services.

Personalized Recommendations

We use software to create user profiles and keep them up to date. The process involves the use of cookies for tracking purposes on the website. Unknown visitors are registered as anonymous.

In some cases we use retargeting by which visitors to a web page are tagged so that they can be presented with targeted information on other web pages. This information cannot be used to identify individuals and can be deactivated at any time by changing the display settings or privacy settings in your browser.

In some cases we use the remarketing function of Google Inc. This feature is used to present website visitors with advertisements related to their interests within the Google advertising network. To do this, a cookie is saved to the visitor's browser which makes it possible to identify the user when he or she visits a website which is part of the Google advertising network. On these sites, the user may be presented with advertising related to content that he or she viewed previously on other websites which employ the Google remarketing feature. According to Google, it does not collect personal information during this process. If you do not want Google to use the remarketing feature, this can generally be deactivated by changing the settings under

Through the use of the Google remarketing feature and the "similar audiences" feature, you may be presented with advertising from ZEISS which is tailored to your person and personal interests when you visit websites within Google's so-called "Display Network". You can also deactivate the cookies used in this process at any time by changing the display settings or privacy settings in your browser.

Social Media

As an example, we use social media cookies to activate social media plug-in icons. This also allows access to social media and surfing on our and other websites can be tracked by the operator of the social network.

If you want to modify, limit, or object to the use of cookies or the analysis of your surfing behavior, or if you wish to withdraw your objection, you can change and manage the settings for each website in most standard browsers as follows:

  • Chrome: Click the padlock icon next to the address bar (on SSL-certified pages) or on the information icon (i).
  • Firefox: Click the icon next to the web address. Look to the right of the check box and select "Further information". The cookie management is located under "Privacy & Security".
  • Internet Explorer: Click the gear icon, then go to "Extras" > "Internet Options". Go to the "Privacy" tab. The cookie management options are located under "Advanced".

You can also manage browser cookies for the most common web browsers via the browser settings. The help function of most web browsers explains how to prevent your browser from accepting new cookies, how your browser can notify you when you receive a new cookie, how to disable cookies and when the cookies expire. If you deactivate all cookies in your browser, neither ZEISS nor third parties will transmit cookies to your browser. However, if you do this, you may need to manually adjust some settings each time you visit a website, and some features and services may not work.

Use of Social Plug-ins

Some ZEISS websites feature the following social plug-in buttons for other websites:

These buttons, if displayed on the website, do not establish any contact with the servers from Facebook and Twitter or similar online service providers. For a connection to be activated, and for communication with Facebook and Twitter to be established, you must firstly grant your approval – by clicking on the buttons.

If you are already logged into a social network of your choice, this is carried out without another window being opened. As this transfer occurs directly, we do not obtain any knowledge of the data transferred. What is transferred is the fact that you have launched the respective site. If you are simultaneously logged onto Facebook & Co., this information will be assigned to your social media account and will thus be connected with you.

The best way to obtain information on the further use and storage of your personal data by Facebook and Twitter, is to go directly to these social media companies. It is likewise possible to block social plugins through your browser using add-ons.


This website uses the online marketing tool Adform from Adform A/S, Denmark. Adform uses cookies in order to activate user-relevant ads, improve the reports on campaign performance, or prevent a user seeing the same ads multiple times. Adform uses a cookie ID to collect data about which ads are activated on which browsers, thus enabling it to prevent the same ad being shown multiple times. What's more, Adform can use cookie IDs to collect conversions, which are related to ad requests. For example, this will happen if a user sees an Adform ad and later visits the advertiser's website via the same browser and makes a purchase. Adform cookies do not contain any personal information, such as email addresses, names or addresses.

By integrating the Adform cookie, Adform will be notified that you have visited a particular section of our website or have clicked on one of our ads.

Furthermore, Adform cookies help us understand whether you can perform certain actions on our website after you've viewed or clicked on one of our Adform display/video ads on another platform (conversion tracking). Adform uses this cookie to understand the content you've interacted with on our websites in order to send you targeted advertising later on.

Adobe Target

Adobe Target uses quantitative methods to capture usage behavior. We do not collect or process the full IP address or any data that could identify an individual person. Adobe uses "session cookies" and "permanent cookies." The former are only temporarily stored for the duration of your use of our website. The "permanent cookies" are used to record information about visitors who repeatedly access our website.

We use Adobe Target for the purpose of personalization only after your prior consent. You can give your consent in our Consent Management System either during your first visit to the portal via the consent banner or at any time in the cookie settings, which can be called up via a link at the end of each page of the portal, and you can adjust or revoke your consent with effect for the future.

You can access the Adobe Target data protection information here.


When you visit our websites, Bizo stores a bizographic (business demographic cookie) on your browser. This cookie does not contain any personally identifiable information. It identifies your professional bizographic data and enables Bizo advertisers to display professionally relevant advertisements on our pages. To learn more about Bizo targeted advertisements, visit this website. If you would like to opt out of targeted Bizo advertising, please visit the Bizo opt-out page.

DoubleClick Floodlight

We use the DoubleClick Floodlight service, an online advertising program from Google Inc, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA (‘Google’).

Google Floodlight allows us to track and document the actions of users who visit our online service after they have seen or clicked on one of our ads. For this purpose, so-called floodlight tags or visitor pixels and cookies are set on our online service (so-called DoubleClick cookie). We use Google Floodlight to determine the efficiency of our online campaigns in terms of sales and user activity on our online service. These cookies and tags do not contain any personal data and are therefore not used for personal identification.

For more information about Google Floodlight and Google's privacy policy, please visit:

You can install a plug-in to object to the analysis of the data described above with effect for the future. The plug-in is available for downloading at


We use the Facebook "Customer Audience", "Facebook Pixel" and "Facebook's Share button" on our websites to optimize our advertising offers, provided that you have granted an appropriate consent. More information about these Facebook services and the privacy policy of Facebook Ireland Ltd., 4 Grand Canal Square, Grand Canal Harbour, Dublin 2, Ireland ("Facebook") can be obtained by clicking on the link
If you use a Facebook user account, the Facebook pixel on our web pages can recognize this by the Facebook cookie which is used to transmit the collected usage data to Facebook for analysis and marketing purposes. Under certain circumstances, the Facebook Pixel may enable tracking on many other websites. You can check and/or deactivate this data collection and the additional processing and use of the data by Facebook directly on Facebook. With Facebook Pixel, the following data is transmitted to Facebook:

  • HTTP header information (including IP address, web browser information, web page location, document, web page URL, web browser user agent, and date and time of use)
  • Pixel-specific data: this includes the Pixel ID and Facebook cookie data including your Facebook ID (this data is used to associate events with a specific Facebook ad account and associate them with a Facebook user)
  • Additional information about your visit to our web pages as well as standard and user-defined data events.
    • Orders placed (sales transactions)
    • Completed registrations and trial subscriptions
    • Products searched for, product information downloads

The above data processing only applies to users who have a Facebook account or have accessed a Facebook partner page (which set a cookie). Playing advertising on Facebook (partner) pages using the "Customer Audience" service does not concern users who are not members of Facebook. If the Facebook ID contained in a Facebook cookie can be assigned to a Facebook user, then Facebook will assign this user to a target group ("Custom Audience") according to the rules we have defined, provided that the rules are relevant. We use the information thus obtained for the presentation of advertisements on Facebook (partner) pages or other websites. If you wish to object to the use of Facebook Pixel, you can set an opt-out cookie on Facebook or disable JavaScript in your browser. For additional information and configuration options for protecting your privacy with regard to advertising purposes, please refer to Facebook's privacy policy, which can be found amongst other locations at .

Google Analytics

This website makes partial use of Google Analytics, a web analysis service from Google Inc., headquartered at 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States ("Google"). For this purpose, Google Analytics uses cookies, i.e. text files that are saved on your computer and enable you to analyze your website. As a rule, the information about your use of this website obtained by the cookie is transmitted to a Google server in the USA, where it is saved. However, your IP address will be shortened by Google if IP anonymization is activated on the website. This applies within the EU member states or in other signatory states of the agreement on the European Economic Area. Only in exceptional cases will the full IP address be transferred to a Google server in the USA and shortened there. On behalf of the operator of this website, Google will use this information to evaluate your use of the website, to compile reports on the website activities, and to provide the website operator with other services relating to website use and Internet use. Google will not merge other data with the IP address transmitted by your browser within the scope of Google Analytics. You can prevent the saving of cookies by setting your browser software accordingly. However, if you choose to do so, please note that you might not be able to utilize all the functions of the ZEISS website in question to their full extent. In addition, you may prevent Google's capture and processing of the data generated by the cookie related to your use of the website (including your IP address) by downloading and installing a browser plugin available via the following link:

The Terms and Conditions of Use and Data Protection Notice can be found at or at

Google has added the code "anonymizeIp" to this web page to enable IP addresses to be collected in an anonymized form.

We use the remarketing and Google AdWords function of Google Inc. on our websites. ("Google"). This function is used to present website visitors with advertisements related to their interests within the Google advertising network. On these sites, the user may be presented with advertising related to content that he or she viewed previously on other websites which employ the Google remarketing feature. According to Google, it does not collect personal information during this process. If you do not want Google to use the remarketing feature, this can normally be deactivated by changing the settings at Alternatively, you can disable the use of cookies for interest-related advertising via the Advertising Network Initiative by following the instructions at For more information about Google remarketing and Google's privacy policy, please visit:

If you have reached our website via a Google advertisement, Google AdWords may sometimes save a cookie on your computer. This cannot trace back to you as a person. The information collected with the help of this so-called "conversion cookie" is used to generate statistics on our conversion rate. This implies that we can know how many users visit our websites through a Google ad and, if applicable, purchase a product. If you want to avoid the tracking process, you can disable cookies for conversion tracking by setting your browser to block cookies from the relevant domain: Google AdWords:

We sometimes use the Google Analytics function "Google Signals" to configure your user experience so that it is equally optimal on all terminals.


We use Hotjar, a piece of analysis software from Hotjar Ltd., on our website in order to improve our understanding of our users' needs and to optimize the offering on this website, provided you gave your consent to this. Hotjar enables us to measure and evaluate the usage behaviour (clicks, mouse movements, scrolling heights, etc.) on our website. The information on your visit to our website which the tracking code and cookies generate in the process is transferred to the Hotjar server in Ireland and saved there. 

The following information may be displayed by your device and your browser:

  • The IP address of your device (gathered and saved in an anonymized form)
  • Your email address, including your given name and family name, if you provided us with this information via our website.
  • Screen size of your device
  • Device type and browser information
  • Geographical location (country only)
  • Preferred language version of our website
  • Protocol information

The following data is automatically generated by our server if Hotjar is used:

  • Referring domain
  • Web pages visited
  • Geographical location (country only)
  • Preferred language version of our website
  • Date and time of when you accessed our website

Hotjar uses this information to evaluate your visit to our website and generate reports on its use as well as to evaluate other services related to the website use and on-line evaluation of the website.

Hotjar also uses services of external companies such as Google Analytics and Optimizely to provide the service. These external companies may save information which your browser sends within the scope of the website visit, such as cookies or IP requests. For further information on the archiving and use of your data by Google Analytics and Optimizely, please see their data privacy statements.

The cookies which Hotjar uses can have different lengths of "service life". Some last for up to 365 days, others are only valid during the actual visit.

You can prevent Hotjar from collecting the data by clicking on the following link and following the instructions there:

LinkedIn Analytics, LinkedIn Ads und LinkedIn Conversion Tracking

We use the conversion tracking technology and retargeting feature of LinkedIn Corporation on our website. This technology allows visitors to this website to play personalized ads on LinkedIn. It is also possible to create anonymous reports on ad performance and website interaction information. To do this, the LinkedIn Insight tag is included on this website, which establishes a connection to the LinkedIn server if you visit this website and are logged into your LinkedIn account at the same time. Please see LinkedIn's privacy policy at for more information on data collection and use, and the choices and rights to protect your privacy. If you are logged in to LinkedIn, you can deactivate data collection at any time at the following link:

Twitter and Twitter Conversion Tracking

We use the visitor action pixel of Twitter Inc., 1355 Market Street, Suite 900, San Francisco, CA 94103, USA ("Twitter") on our website, provided you gave your consent to this. This helps us to track the actions of users after they have seen or clicked a Twitter advertisement. We can then determine the effectiveness of Twitter advertisements for statistical and market research purposes. The data captured in this way is anonymous to us - meaning that we do not see the personal data of individual users. This data is however saved and processed by Twitter, about which we inform you in line with the knowledge available to us. Twitter may link this data with your Twitter account and also use it for its own marketing purposes in accordance with Twitter's data protection policy You may enable Twitter and its partners to place advertisements on and outside of Twitter. A cookie may additionally be saved on your computer for these purposes. 

More detailed information on conversion tracking and data protection settings for customized adverts can be found at

By using Twitter and the "re-tweet" function, the websites you have visited are linked with your Twitter account and disclosed to other users. Data is also transferred to Twitter in the process. Please note that, as providers of the webpage, we do not obtain any knowledge of the content of the transferred data or its use by Twitter. Further information in this regard is available in Twitter's data privacy statement at

You may change your data protection settings on Twitter under the account settings at
. This consent may only be granted by users who are over 16 years old. If you are younger, please ask your parent or guardian for advice.  


This site uses technology from Outbrain Inc. ("Outbrain", 39 W 13th Street New York, NY 10011 USA). This makes it possible to target advertising or collect analytics on internet users who have already been interested in our offers on our partners' websites. The technology is dependant on cookie-based analysis of user's behavior. This advertisement will only appear through Outbrain, either on the Outbrain Engage or the Outbrain Extended Network. If you do not want to see interest-based advertising, you can disable this feature here.


This website uses Taboola's content discovery technology to recommend other online content to you that you may be interested in. To make these recommendations, Taboola collects information about your device and your behaviour on this website (and other partnering websites) using cookies and similar technologies. The technology also makes it possible to show advertisements to users within the Taboola advertising network if the user has been in contact with Taboola's pixel. To learn more, see Taboola's Privacy Policy or click here to opt out.

Partners providing tracking and cookie technologies

Addresses and privacy policies of our partners providing tracking and cookie technologies


Wildersgade 10B
1408 Copenhagen,

Adobe Systems

Adobe Systems Inc.
345 Park Avenue
San Jose
CA 95110-2704 USA


Baidu Campus
No. 10 Shangdi 10th Street
Haidian District
Beijing 100085

Drift, Inc.
222 Berkeley St, 7th Floor
Boston, MA 02116


entergon GmbH & Co. KG
Wilhelmstraße 14A
61381 Friedrichsdorf


Facebook Ireland Limited
4 Grand Canal Square
Grand Canal Harbour
Dublin 2, Ireland


LogmeIn Ireland Limited
Bloodstone Building Block C
70 Sir John Rogerson´s Quay
Dublin 2, Ireland


5 E 8th Ave,
Vancouver, BC V5T 1R6,


Hotjar Ltd.
3 Lyons Range
20 Bisazza Street
Sliema SLM 1640
Malta, Europe

JW Player

LongTail Ad Solutions, Inc.
d/b/a JW Player
8 W 38th St., Ste. 901
New York, NY 10018

pri vacy @jwplayer .com 

Lead Forensics

Lead Forensics UK
4 Old Park Lane
London W1K 1QW
United Kingdom


LinkedIn Ireland Unlimited Company
Wilton Place
Dublin 2, Ireland


Marketo EMEA Ltd.
South County Business Park
Leopardstown Road
Dublin 18, Ireland

Microsoft Advertising

Microsoft Corporation
One Microsoft Way
Redmond, WA 98052-6399


39 W 13th Street
New York
NY 10011


Rebrandly Ltd.
31 Westland Square
Dublin 2, Ireland

Salesforce Germany GmbH
80636 Munich


Searchmetrics GmbH
Greifswalder Straße 212
10405 Berlin


Siteimprove GmbH
Kurfürstdamm 56
10707 Berlin


Vajnorska 100/A,
831 04 Bratislava,


Spotify USA Inc
4 World Trade Center
150 Greenwich Street, 62nd Floor
New York, NY 10007


One Curiosity Way,
San Mateo, CA 94403

Taboola Europe

Taboola Europe ltd.
Aldgate House
33 Aldgate High St
London EC3N 1DL


TeamViewer GmbH
Jahnstr. 30
73037 Göppingen


Twitter Inc.
1355 Market Street
Suite 900
San Francisco CA 94103


Vimeo, Inc.
Attention: Data Protection Officer
555 West 18th Street
New York, New York 10011


7361 Calhoun Place Ste 655
Rockville, MD 20855, USA Headquarters
Schönbrunner Strasse 213/215
3rd Floor
1120 Vienna


Wistia Inc.
17 Tudor Street
Cambridge, Massachusetts, 02139 USA


Youku Tudou Inc
11/F SinoSteel Plaza 8 Haidian Street Haidian District Beijing
100080 China

Changes and Revocation

You can change and revoke your consent to the use of cookies at any time. To do this, you must activate and/or delete your cookies.

You can use our ZEISS online services without consenting to the use of cookies. Certain parts and functionalities of the ZEISS online services may no longer work or may not work correctly without cookies.

Your Internet browser will allow you to change your cookie settings. The browser settings for cookies are usually located under the "Options," "Tools" or "Preferences" menu in your Internet browser. You can also consult the "Help" menu for your browser. Different browsers may employ different mechanisms to deactivate cookies.

More detailed information on changing your cookie settings can be found under the following links:


Should you still have questions about our ZEISS Cookie Policy, please do not hesitate to contact us.

The Corporate Data Protection Officer
Carl-Zeiss-Strasse 22
73447 Oberkochen

Contact via email (pleae do not send any confidential content):
datap rivacy @zeiss .com

Contact via telephone: +49 7364 20-0 (keyword: "data privacy")