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ZSL websites including https://londonzoo.org and https://whipsnadezoo.org and related apps use cookies, by continuing to use our websites or apps you will have been deemed to have agreed to our use of cookies subject to any overriding browser settings you may have. 

What is a cookie?

A cookie is a small text file that’s stored on your computer or mobile device when you visit a website. 

Cookies perform several functions, such as remembering who you are on a particular site (your welcome message), to keeping you logged in to your account screen on an ecommerce site (however, you should always log out if you are using a public computer). Advertising agencies also use cookies to find out if they have served you an advert from a particular brand on a site, or if you have seen a particular advert before. Website owners will use cookies to follow which pages that you’ve read so that they can see what parts of the site are popular or not. In short, cookies are a way of providing statistics on site visits as well as some limited functionality that makes your site visit easier. When used properly cookies are an asset to a site visitor and a site owner. Most internet browsers automatically accept cookies but you can delete existing cookies from your browser and, by editing your internet browser options, choose not to receive cookies in future.

Please note that if you opt to disable some or all cookies, we are unable to guarantee that our websites will operate. 

Opting out of cookies

There are a number of options available so that you do not have to store any cookies at all. You can either set your browser so that it will not accept and store any cookie, or if you have a little more time and knowledge you are able to allow only certain ‘trusted’ sites to store cookies on your computer. These sites may include us (of course!), or the site where you carry out your online banking, or possibly your favourite news service.

It’s worth bearing in mind that if you decide to delete all of your cookies, then you will likely have to re-enter all of your usernames and passwords on all of the sites that you visit, which you previously didn’t even have to think about. As we mentioned before, cookies can be a real asset to your web surfing experience.

The Information Commissioner’s Office provides some advice about cookies and their use, but it also provides a link to ‘About cookies’ ( www.aboutcookies.org ) which is run by the law firm Pinsent Masons. This website provides even more information about cookies if you feel that this page and the ICO is not enough information for you, but it also details how you might delete any cookies that you find, and it also shows you how to allow those trusted sites to store their cookies on your computer.

Useful websites

Third party cookies

ZSL utilises the technology of third parties on a regular basis to ensure that we are using up to date systems which are managed by the best companies to provide us with the services that we need. This in turn means that there will be a number of third party cookies from our trusted suppliers used on our websites.

Each company is responsible for the cookies that they place onto your device and have separate policy documents to highlight their use. 

Key third party suppliers and links to their privacy policies:

Analytics

ZSL uses analytics software managed by third parties, these services use cookies in order to provide statistical reports about our site visitors. Current third party analytics software include:

Google Analytics

We use Google Analytics to help us understand how visitors are using and engaging with our website and apps. This allows us to make improvements to our web services and your online experience.

The Google Analytics tracking tool uses a number of cookies to collect information and report website usage statistics and does so without personally identifying individual visitors to Google or ZSL. If you wish to opt-out of Google Analytics tracking please visit and install the Google Analytics Opt-out Browser Add-on. More information on how ZSL uses Google Analytics and related services can be found in our privacy policy.

Hotjar

ZSL uses services provided by Hotjar Ltd. Hotjar provides services including Heatmaps, Visitor recordings, Funnels and Form Analysis, Feedback Polls, Surveys and Recruiters. The information generated by the tracking code and cookies about your use of the website will be transmitted to and stored by Hotjar on servers in Ireland. Through the Hotjar tracking code the information collected is device specific data.

The following information may be collected from your device and browser:

  • your device's IP address (collected and stored in an anonymised format);
  • device screen size;
  • device type (unique device identifiers) and browser information;
  • geographic location (country only);
  • the preferred language used to display the webpage. 
  • referring domain;
  • pages visited;
  • geographic location (country only);
  • the preferred language used to display the webpage;
  • date and time when website pages were accessed;
  • Mouse events;
  • Keypresses.

Hotjar will use this information for evaluating your use of the ZSL website, compiling reports on website activity for website operators and providing other services relating to website activity and internet usage. Hotjar uses a variety of services hosted by third parties, such as Google Analytics and Optimizely. For information on how Google Analytics and Optimizely collect and use your information, please refer to their privacy policies. By continuing to use this website, you consent to the processing of the above data by Hotjar and by the third parties used by Hotjar in accordance with their respective privacy policies. The cookies used by Hotjar have differing durations; some are 365 days, some persist for the session only.

To opt out please go to the following link: https://www.hotjar.com/opt-out

ZSL website cookie list

The aim of this cookie list is to provide you with an understanding as to what types of cookies ZSL uses on our digital platforms. The list below covers key cookies that ZSL or our technology partners use, please be aware that this list is not exhaustive.

Category: Necessary (7)
Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.
 
COOKIE NAMEPROVIDERCOOKIE PURPOSE DESCRIPTIONEXPIRY
__cfduidr1-t.trackedlink.netUsed by the content network, Cloudflare, to identify trusted web traffic.1 year
__cfduidzsl.orgUsed by the content network, Cloudflare, to identify trusted web traffic.1 year
AWSELBunity.cadreon.comUsed to distribute traffic to the website on several servers in order to optimise response times.Session
CookieConsentzsl.orgStores the user's cookie consent state for the current domain1 year
 
has_jszsl.orgRegisters whether or not the user has activated JavaScript in the browser.Session
JSESSIONIDnr-data.netPreserves users states across page requests.Session
local_storage_support_testtwitter.comThe cookie is used in context with the local-storage function in the browser. This function allows the website to load faster by pre-loading certain procedures.Persistent
Category: Statistics(6)
Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.
 
COOKIE NAMEPROVIDERCOOKIE PURPOSE DESCRIPTIONEXPIRY
_dc_gtm_UA-#zsl.orgUsed by Google Tag Manager to control the loading of a Google Analytics script tag.1 day
_gazsl.orgRegisters a unique ID that is used to generate statistical data on how the visitor uses the website.2 years
_gidzsl.orgRegisters a unique ID that is used to generate statistical data on how the visitor uses the website.1 day
_hjidzsl.orgSets a unique ID for the session. This allows the website to obtain data on visitor behaviour for statistical purposes.1 year
_hjidzsl.orgSets a unique ID for the session. This allows the website to obtain data on visitor behaviour for statistical purposes.Persistent
_hjTLDTestzsl.orgHotjar cookie. This cookie is set when the customer first lands on a page with the Hotjar script.Session
collectgoogle-analytics.comUsed to send data to Google Analytics about the visitor's device and behavior. Tracks the visitor across devices and marketing channels.Session
Category: Marketing(24)
Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.
 
COOKIE NAMEPROVIDERCOOKIE PURPOSE DESCRIPTIONEXPIRY
__widgetsettingstwitter.comUnclassifiedPersistent
_fbpzsl.orgUsed by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers.3 months
_gcl_auzsl.orgUsed by Google AdSense for experimenting with advertisement efficiency across websites using their services.3 months
_hjIncludedInSamplezsl.orgDetermines if the user's navigation should be registered in a certain statistical place holder.Session
ads/ga-audiencesgoogle.comUsed by Google AdWords to re-engage visitors that are likely to convert to customers based on the visitor's online behaviour across websites.Session
anjadnxs.comRegisters a unique ID that identifies a returning user's device. The ID is used for targeted ads.3 months
frfacebook.comUsed by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers.3 months
GPSyoutube.comRegisters a unique ID on mobile devices to enable tracking based on geographical GPS location.1 day
i/jottwitter.comSets a unique ID for the visitor, that allows third party advertisers to target the visitor with relevant advertisement. This pairing service is provided by third party advertisement hubs, which facilitates real-time bidding for advertisers.Session
IDEdoubleclick.netUsed by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user.1 year
pagead/1p-user-list/#google.comUnclassifiedSession
PREFyoutube.comRegisters a unique ID that is used by Google to keep statistics of how the visitor uses YouTube videos across different websites.8 months
TDIDadsrvr.orgRegisters a unique ID that identifies a returning user's device. The ID is used for targeted ads.1 year
test_cookiedoubleclick.netUsed to check if the user's browser supports cookies.1 day
trfacebook.comUsed by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers.Session
uuid2adnxs.comRegisters a unique ID that identifies a returning user's device. The ID is used for targeted ads.3 months
VISITOR_INFO1_LIVEyoutube.comTries to estimate the users' bandwidth on pages with integrated YouTube videos.179 days
YSCyoutube.comRegisters a unique ID to keep statistics of what videos from YouTube the user has seen.Session
yt-remote-cast-installedyoutube.comStores the user's video player preferences using embedded YouTube videoSession
yt-remote-connected-devicesyoutube.comStores the user's video player preferences using embedded YouTube videoPersistent
yt-remote-device-idyoutube.comStores the user's video player preferences using embedded YouTube videoPersistent
yt-remote-fast-check-periodyoutube.comStores the user's video player preferences using embedded YouTube videoSession
yt-remote-session-appyoutube.comStores the user's video player preferences using embedded YouTube videoSession
yt-remote-session-nameyoutube.comStores the user's video player preferences using embedded YouTube videoSession
zsl_all_site_visitors_yahooyahoo.comUsed by Google DoubleClick to measure all of the websites visitors. This tag will also build audiences to share with Yahoo180 days
zsl_all_site_visitorsGoogle.comUsed by Google DoubleClick to measure all of the websites visitors. This tag will also build audiences to share with Google's DV360 platform180 days
zsl_ticket_sales_confirmationGoogle.comUsed by Google DoubleClick to measure all of the websites visitors. This tag will also build audiences to share with Google's DV360 platform180 days
Category: Unclassified(2)
Unclassified cookies are cookies that we are in the process of classifying, together with the providers of individual cookies.
 
COOKIE NAMEPROVIDERCOOKIE PURPOSE DESCRIPTIONEXPIRY
jserr_enzsl.orgUnclassifiedSession

Flash cookies

Adobe uses a particular type of cookie called a ‘Local Shared Object’, which is typically collected if you watch a video for example that uses the Adobe Flash media player, i.e. an embedded YouTube video on a page that is being played via Flash. Please note that these types of cookie will not be found on iPads, which do not support Flash.

Have a look at Adobe's website if you want to control Flash cookies on your computer. If you’ve got a Firefox browser you can also get an add-on to detect and delete Flash cookies.

Web beacon

Web beacons are also sometimes referred to as ‘web bugs’ and are small single pixel transparent image files. They allow website owners to know when a visitor has reached their website, and are used in conjunction with cookies to allow further website tracking to be monitored. Again, these files are not viruses, but are useful in helping us to make your web surfing experience better.

Privacy Policy

ZSL is committed to protecting your privacy in accordance with their obligations under data protection legislation. The current data protection law is found in the Data Protection Act 1998 but with effect from 25th May 2018, the main data protection law will be the General Data Protection Regulation as supplemented by the Data Protection Act 2018 and related laws.

The ZSL privacy policy explains what information ZSL collects about you and how it will be used. You can read our full privacy policy here.