Cookies Policy


This Cookies Policy (“Cookies Policy”) explains how Zscaler, Inc. and its subsidiaries (“Zscaler” or “We” or “Us") as well as third parties with whom we partner may use cookies , advertising identifiers, or similar technologies when you use or access our online website at (the “Website”) or other third-party websites. This Cookies Policy explains what these technologies are and why we use them, as well as your rights to control our use of them. This Cookies Policy is and will be treated as part of our Privacy Policy, and is automatically incorporated therein. Capitalized terms used and not otherwise defined in this Cookies Policy have the meanings given to those terms in our Privacy Policy.

We may change this Cookies Policy from time to time. The date this Cookies Policy was last revised is indicated at the top of this Cookies Policy.

What is a Cookie?

A cookie is a small piece of data (text file) that a website, when visited by a user, asks your browser to store on your device in order to remember information about you, such as your language preference or login information. Those cookies are set by us and called first party cookies. We also use third party cookies, which are cookies from a domain different than the domain of the website you are visiting, for our advertising and marketing efforts.

More specifically, we use cookies and other tracking technologies for the following purposes:

  • Assisting you in navigating the Website;
  • Assisting you in registering for our events, webinars, and providing feedback;
  • Analyzing your use of the Website;
  • Assisting with our promotional and marketing efforts.

Below is a detailed list of the cookies we use on our Website. Our Website is scanned with our cookie scanning tool regularly to maintain a list as accurate as possible. We classify cookies in the following categories:

  • Strictly Necessary Cookies
  • Performance Cookies
  • Functional Cookies
  • Targeting Cookies

You can opt-out of each cookie category (except strictly necessary cookies) we use on our Website on the “Cookie Settings” button in the footer of our Website.

We partner with third parties to manage our advertising and marketing efforts. Our third-party partners may also use technologies such as cookies or other tracking technologies to gather information about your activities on our Website and other sites in order to suggest advertisements based upon your browsing activities and interests (also referred to as “interest-based advertising”). While we do not necessarily have access to or control over the technologies our third party partners use, you may be able to opt out of some of these interest-based advertising practices by visiting the following links: Network Advertising InitiativeDigital Advertising Alliance, and TrustArc. Please note that this will not opt you out of being served ads and you will continue to receive generic, untargeted ads.

Strictly Necessary Cookies

These cookies are necessary for the Website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the Website may not work then.



These cookies are used to provide the basic functionality on the site.

  • SimpleSAMLSessionID
  • SSESS1f4250fb0db98486908a59b0cef44b46
  • _dc_gtm_UA-6177009-1
  • BIGipServerabmweb-app_http


These cookies are set by the cookie compliance solution from OneTrust.

  • OptanonConsent
  • OptanonAlertBoxClosed

Performance Cookies

These cookies allow us to count visits and traffic sources, so we can measure and improve the performance of our Website. They help us know which pages are the most and least popular and see how visitors move around the Website. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies, we will not know when you have visited our Website.




Google Analytics

This cookie name is asssociated with Google Universal Analytics - which is a significant update to Google's more commonly used analytics service. This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page request in a site and used to calculate visitor, session and campaign data for the sites analytics reports. By default it is set to expire after 2 years, although this is customisable by website owners.

  • _ga
  • __utma
  • __utmz
  • _gat
  • __utmc
  • _gid
  • __utmt_UA-nnnnnnnn
  • __utmb

Used for UI analysis and testing

  • Mouseflow
  • mf_3324fa8f-b066-4fec-917a-9fe9fb2b9efe
  • mf_user


Optimizely is an American company that makes customer experience optimization software for other companies. 

  • optimizelySegments
  • optimizelyBuckets
  • optimizelyPendingLogEvents
  • optimizelyEndUserId

Functional Cookies

These cookies allow the provision of enhanced functionality and personalization, such as videos and live chats. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these functionalities may not function properly.



  • __utmz
  • __utmv
  • __utmt_~3
  • __utmt_~1
  • __utmb
  • __utma
  • __utmc

  • 01AI

  • guestidc

  • autoinvite_callback
  • lc_invitation_opened
  • __lc.visitor_id.nnnnnnn
  • lc_window_state
  • notification[personal_invitation]
  • 3rdparty
  • main_window_timestamp
  • recent_window
  • notification[status_ping]
  • message_text
  • __livechat_lastvisit
  • main_window_timestamp_0
  • __livechat
  • __lc_vv

Event site for Zenith Live 2018

  • mp_mixpanel__c
  • mp_412f41b9a2f5b1a17e172e08ee7b3691_mixpanel


  • wistia-http2-push-disabled

Drupal Host

Cookies set to check if a user has JavaScript enabled.

  • has_js

Targeting Cookies

These cookies are set through our Website by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant ads on other websites. They work by uniquely identifying your browser and device. If you do not allow these cookies, you will not experience our targeted advertising across different websites.

Cookies used

  • _gcl_au
  • __distillery
  • dc




This cookie is associated with an email marketing service provided by Marketo. This tracking cookie allows a website to link visitor behavior to the recipient of an email marketing campaign, to measure campaign effectiveness.

  • username
  • _mkto_trk
  • __d_mkto


  • _biz_flagsA
  • _BUID
  • tuuid
  • _biz_dfsA
  • _biz_pendingA
  • FB_cookie
  • um2
  • DigiTrust.v1.Identity
  • _biz_nA
  • loop
  • _biz_sid
  • tuuid_last_update
  • _biz_uid
  • trackalyzer

  • trackalyzer


  • driftt_aid
  • driftt_sid

  • iuuid

  • visitor
  • has_data

  • barometric[cuid]

Zscaler Security Preview

  • __ar_v4

  • 6suuid

  • checkForPermission
  • bito

  • datr
  • fr
  • lu
  • _fbp

  • c
  • tuuid_last_update
  • tuuid

  • SID
  • HSID
  • demographics
  • PREF
  • SSID

  • APID

  • FB_cookie
  • FVOD
  • trackalyzer

  • adrl

  • id

  • tluid

  • CMID
  • CMDD
  • CMST
  • CMRUM3
  • CMPS
  • CMSC

  • BizoID
  • UserMatchHistory
  • lang

  • lidc
  • bcookie
  • __utma
  • __utmv
  • __utmz
  • bscookie
  • __qca
  • visit
  • lang
  • UserMatchHistory

  • _te_
  • __adroll

  • bs_mop_u3s
  • _gat_clientTracker
  • SSID
  • NID
  • PREF
  • SID
  • HSID
  • _gd#############

  • HSID
  • SID
  • PREF
  • NID
  • SSID

  • put_2760
  • put_1512
  • put_3644
  • rpb
  • khaos

  • HRL8
  • mt_mop
  • uuidc
  • mt_misc
  • uuid

  • PugT

  • JEB2
  • CfP

  • rtn1-z
  • ck1
  • rlas3

  • sess
  • uuid2

  • i

  • c
  • rpx

  • stx_user_id

  • t_gid
  • taboola_usg

  • id
  • IDE