Cookie Policy

North of England Zoological Society (Chester Zoo) is committed to protecting your privacy and security.

Cookies used by Chester Zoo are not present to gather and use personally identifiable information from its users. Some of the cookies we use are necessary for site functionality and some of the cookies help improve your interactions with the site or provide us with non-personally identifiable data which will enable us to do so.

Listed in the table below are details on the cookies used on our site.

It is possible for you to stop or restrict the cookies set by Chester Zoo by changing your browsers settings, however this might possibly affect the functionality of the site.

For more data on cookies visit www.aboutcookies.org this site also provides explanations on how to disable cookies on your computer.

At any time, visitors may choose to opt-out of Google Analytics tracking with the Google Analytics opt-out browser add-on found here.

Name Details Expiry
__utma This cookie is written on a user’s first visit to www.chesterzoo.org. Google Analytics uses this cookie to record the unique visitors to the site and the frequency of views each page obtains. 2 years
__utmb Previously used by Google Analytics Java Script to define a session status. Not set
__utmz This cookie is used to distinguish and store information on how our visitors arrive to www.chesterzoo.org. For example, this be can by inputting our site URL or from search / paid media. 6 months
__unam www.chesterzoo.org enables social sharing of pages through social networks such as Facebook and Twitter. __unam is used to monitor and record activity generated by social referrals, for example web page views, referrals journey through www.chesterzoo.org and the amount of time spent on each page. 9 months
__utmx, __utmxx Google Web Optimizer is an A/B testing tool. The cookies set within this are used to gather non-personally identifiable information about your interactions with the site to help Chester Zoo make improvements based on the results of this testing. 18 months
.doubleclick.net, id

This cookie is used for online marketing campaigns managed through DoubleClick, a component of Google. Visits, pageviews, sales volumes, and similar engagement metrics are recorded for campaign optimisation of activities such as paid search, and banner advertising.

We use DoubleClick Bid Manager (DBM), by means of this cookie, to remarket online display advertising to you based on your browsing behaviour and engagement on the www.chesterzoo.org website.

Online remarketing enables advertising you may see whilst browsing the internet to be capped at a reasonable frequency and increase the relevancy of the content which is delivered to you. Any information collected is wholly none personally identifiable, used only for remarketing purposes and will not be used by them for any other purpose.

Chester Zoo will not facilitate the merging of personally-identifiable information with non-personally indentifiable information previously collected from Google Display Advertising features that is based on the DoubleClick cookie unless Chester Zoo has robust notice of, and the user's prior affirmative (i.e., opt-in) consent to, that merger.

Chester Zoo uses the Google Analytics Demographics and Interest Reporting feature to identify trends in the usage of its website in order to improve it.

2 years
optimizelyBuckets, optimizelyEndUserId, optimizelyPendingLogEvents, optimizelySegments Optimizely is an A/B testing tool. The cookies set within this are used to gather non-personally identifiable information about your interactions with the site to help Chester Zoo make improvements based on the results of this testing. Up to 10 years
ASP.NET_SessionID ASP.NET_SessionID cookie holds session data temporarily, containing no personally identifiable information. Once you closes your browser the data stored in this cookie will be cleared. End of Session
4Q__utma, 4Q__utmz, 4QguidIPE, 4Qua, ASP.NET.SessionId, HeaderData, IPE_HV_ALL, OtherInvVariables, Referer, IPE104010 These cookies are used within our 4Q surveying system. 4Q sets these cookies from iperceptions.com. These cookies collect non-personally identifiable information automatically for use on the 4Q. Enabling 4Q to evaluate analytical data and to also bring forward users preferences when interacting with the surveys. Up to 2 years
WurflCloud_Client Wurfl is a tool allows us to show you a mobile version of our website if you are using a mobile device. 1 month