Cookie Policy
Last Updated: November 13, 2018


Our Web sites use cookies and technologies which are similar to cookies. A cookie is a small piece of information that is sent to your browser and stored in your device’s memory.

We use cookies to deliver services requested by you, as well as to improve the quality of our online services by storing user preferences and monitoring user trends. We use several types of cookies:

  • Authentication and authorization cookies allow access to secure areas and specific functionality of the online services. These are strictly necessary for the proper operation of our Web site and the services that we provide to you.
  • Personalization cookies allow our Web site to remember choices you make and provide personalized features. They may also be used to provide services in the way you have specified.
  • Tracking cookies collect information about how you use our Web site, what pages you visit on our Web site, and how often. We use this information to improve our Web site.

At this time due to a lack of industry standards, our Web site does not respond to browser “Do Not Track” signals.

You can control how your browser handles cookies received from our Web site. You can choose to refuse all cookies, be prompted before a cookie is saved to your hard drive or device memory, or only accept cookies from certain Web sites that you designate. Information on deleting or controlling cookies is available at By refusing to accept cookies from us, you may not be able to use some of the features and functionality available on our Web site.

The following is a non-exhaustive list of cookies you may encounter on and


The following is a non-exhaustive list of cookies you may encounter on


ZS also collects information by using conversion pixels. Conversion pixels are small pieces of code located on Web sites that provide metrics details to the pixel owner. The following chart shows where ZS uses this tool and your options for disabling it:

ZS uses Google tools like Google Analytics and Google AdWords to understand our site visitors better and deliver relevant ads to you. If you prefer to opt out of Google Analytics, Google provides this browser add-on: To make changes to how Google delivers ads to you, you can adjust your advertising settings here:

You can also find more information about controlling third party advertising networks from the Digital Advertising Alliance: Tools such as Ghostery ( can also assist you control a variety of online trackers.

If you have any questions or concerns about the cookies on our site, please contact us at

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