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Our policies

What are cookies?

Cookies are tiny text files stored on your computer when you visit certain web pages. At Auto Trader we use cookies to keep track of the options you have selected on the website and to remember you when you return to our site.

To get the best Auto Trader experience, you need to have cookies enabled. If you don't wish to enable cookies, you will still be able to use the site but you may not be able to use some of the essential features we offer such as placing an advert so we recommend you keep them enabled.

Cookies don't harm your computer. Like other online companies, we use cookies to provide you with more relevant and useful information. We don't store personally identifiable information such as credit card details in cookies we create, but we do use information gathered from cookies to help improve your experience of the site.

Can I opt out?

We do have relationships with carefully-selected and monitored suppliers who may also set cookies during your visit to Auto Trader; they will show you different products and services based on what you appear to be interested in. If you'd like to opt out, please go to the Network Advertising Initiative website (opens in a new window - please note that we're not responsible for the content of external websites)

Cookies policy

To make full use of the features on our site you will need to accept cookies, as we can only provide you with certain personalised features of this website by using them.

If your computer is configured to accept cookies we will be able to provide time saving functionality such as:

  • The ability to pre-fill the search form with your postcode, thus preventing the need to re-input it each time you want to perform a search.
  • The ability to login to your AutoTrader account and place adverts on the site.

However, if you'd prefer to restrict, block or delete cookies from autotrader.co.uk, or any other website, you can use your browser to do this. Each browser is different, so check the 'Help' menu of your particular browser to learn how to change your cookie preferences.

For further information on cookies or for details on how to delete them or refuse their installation on your computer, please visit http://www.aboutcookies.org/

Cookies used on the website

Here is a list of how we use cookies on the website

Omniture

Cookies: s_vi, s_sess, s_pers

We use Omniture's software to carry out statistical analysis of page use, page interactions and paths through the Website. This is known as 'web analytics'. We may also record certain information that customers provide during a Website purchase or other process.

This information allows us to more accurately understand individual behaviours and needs. This means that we can more easily tailor offers and information which may be of interest to individuals.

Doubleclick

This is a supplier which helps us track the online advertisements which we serve to consumers and the subsequent actions on our Website of those who respond. Our Website pages may contain electronic images which are tracking pixels; these allow us to track user interactions on these pages. They may also report back some information to DoubleClick about the interaction on that page.

Audience Science

Cookies: rsi_segs

This is one of our online audience monitors that allow us to track customer actions on the Website and to tailor the advertisements you see on 3rd party sites. The content of these advertisements is influenced by your interactions with the Website such as the pages you view, searches you conduct and offers you show an interest in.

Google Adsense

We use third-party advertising companies to serve ads when you visit our Website. These companies may also use cookies, over which we have no control.  These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you.

Live Chat Service

We use a third party supplier to provide the Live Chat Service. The cookies are used to manage your live chat session, to track your preferences and to personalise your experience.  You may disable persistent cookies.  However, if you disable the session cookie you will not be able to use the Live Chat Service.  If you wish to find out more about the supplier's use of cookies please refer to their privacy policy at http://www.contactatonce.com/service/serviceprivacy.html

247 RealMedia

Cookies: OAX, RMFL

These cookies are used in order to present you with relevant display advertising across various pages in our site.

Maxymiser

Cookies: mmcore.tst, mmid, mmcore.pd, mmcore.srv, mmid

As we bring out new innovative features across our web site, we like to trial these features out on a small audience of our site. In order to do this, we use Maxymiser technology which uses cookies in order to remember if you have been selected to use the new upcoming features of the site. No personally identifiable data is used.

HookLogic

Cookies: UserID

We use HookLogic's software to serve and track sponsored online advertisements throughout the Website. This company uses a cookie to more accurately serve the most appropriate advertisements, and to better understand individual user behaviour and requirements.

Scorecardresearch.com

We use ScorecardResearch to help with the collection of Internet web browsing data, in creating reports on Internet behaviour and trends such as new versus repeat visitors to the website. The ScorecardResearch tagging is not used to identify the user visiting a page, although data such as a timestamp, the URL, and the title of the web page may be collected.
If you wish to find out more about the supplier's use of cookies please refer to their privacy policy at http://www.scorecardresearch.com/privacy.aspx

ForeSee

Cookies: fsr.s, fsr.sp, fsr.r

We use third party companies to provide survey functionality to our users on our site. The cookies set by these companies allow us to track your interactions with the website for the purpose of providing of associting your journey around our site with the information you provide when we ask you to complete a survey. We also use cookies to ensure that once you've completed the survey, we don't ask you to complete it again.

First party Cookies
Auto Trader first party cookies used on the website

Registration - Cookies: user, ursid, urss (session), userid, ursa, UpdateAccount, pageParameters

We use cookies on the Auto Trader web site whenever you login, in order to remember who you are, both for your current visit and to remember you when you come back to the site on later visits without having to login again, we store the following personal details: first name, year of birth (if supplied), gender, county, postcode.

Whenever you are not logged in, we use a non-personally identifiable cookie to understand the number of unique visitors who look at the adverts on the site.

Used and new vehicle search - Cookies: CompareTray (session), searches, SearchData, postcode, GeoLocation

In order to provide some of the functionality within the new and used vehicle search sections of our site, we need to store some information in cookies related to the searches you have been performing. For example whenever you compare different vehicles or adverts, we need to store the identifiers for those vehicles and adverts. We store the postcode you have entered for searches to enable us to show you the distance you are from the vehicles in the adverts, and the makes and models of vehicles you are currently searching. We also record related information about the postcode you supply, including the Acorn profiling code for that postcode, longitude and latitude of the postcode. Some of this information may also be used to bring you more relevant display adverts across our site.

Internal tracking - Cookies: pages, PAGE_REF (session)

There are certain product pages that we like to know that you have visited such as the insurance, finance or car history pages which we record in a cookie; this allows us to provide you with more adverts which are more relevant to you through our display advertising.

In addition, we like to understand the response that we are providing to our used car advertisers on the site, and so we use a cookie to store some information about the search which you have performed in a cookie.

Quick quote insurance - Cookies: QuickQuote

In order to provide you with quick quote insurance prices for each advert as you search around the used cars section of our site, we need to store your age and the number of no claims years information that you provided to us when you enabled this option.

Surveys - Cookies: Survey, survey.bikes.response, survey.bikes.session (session), survey.bikes.visit, survey.cars.response, survey.cars.session (session), survey.cars.visit

In order to gather feedback from our customers about the site's products & features you will be invited to leave your feedback on occassion by filling in a short survey. Providing feedback to us will enable to Autotrader team to act on this feedback and improve services and features.

Managing Cookies
How to manage cookies.

Browsers are changing all the time, to get the most up to date information about managing your cookies in your browser visit www.aboutcookies.org ( this will open in a new window - please note that we can't be responsible for the content of external websites)

Appendix

Cookie name

Type

Data stored

Purpose

CompareTray

Session

Advert or vehicle identifiers that have been added to the compare tray.

To provide the compare functionality in the vehicle search sections of the site.

GeoLocation

Persistent

Postcode, Town, Longitude/Latitude and ACORN code, all are related to the postcode of the last search performed.

Enables us to provide the user with the distance information from each of the vehicles in their search results.

 

This information is also provided to the display advertising server to provide more relevant display ads to the user.

IP_CHECKED

Persistent

Yes/No flag

Used to remember if the user's IP address has been checked as to assess whether they should be sent to the Northern Ireland or UK site.

JSESSIONID

Session

Unique identifier for this browser's session.

Used by the Servlet container to identify the user's session for the particular server that the user is connecting to; although we don't take advantage of this due to our load balancing policies.

OAX

Persistent

247 RealMedia cookie holds unique anonymous identifier for the user.

247 Real Media is used to deliver display advertising across the site to users, this identifies the unique user to the RealMedia server.

PAGE_REF

Session

Log code, page identifier, previous page path

This is used to:

Enable the 'back to results' navigation link to function correctly

Ensure the correct page type is being logged from the page (which helps us understand the counts of advert and search views)

Ensure that the same search results are not double logged on navigating back.

QuickQuote

Persistent

Gender, Age, Years of no claims discount

This is used to provide the user with the insurance estimates for each of the vehicles in the search results.

FL

Persistent

The identifiers of the featured listing ads clicked on in the previous 5 minutes.

Used to ensure we only single count the clicks of the same Featured Listing ad that the same user may have re-visited within a 5 minute time period.

RMFL

Persistent

247 RealMedia cookie holding the campaign frequency cap.

247 Real Media is used to deliver display advertising across the site to users, this cookie is used to ensure the display advert impressions are regulated depending on the type of campaign.

SearchData

Persistent

Postcode of the last used vehicle search.

This is used to pre-populate the postcode field on the used vehicle search forms (also updates the GeoLocation cookie upon searching).

UpdateAccount

Session

Encrypted authentication expiry time.

This is used to identify when the user should be asked to re-authenticate (relative to the previous time when they authenticated) if they are trying to access sensitive account areas (such as the My Account section) of the site.

mmcore.pd

Persistent

Proprietary 3rd party data stored for Maxymiser

Used to provide the multi-variant testing functionality across the site.

mmcore.srv

Persistent

Proprietary 3rd party data stored for Maxymiser

Used to provide the multi-variant testing functionality across the site.

mmcore.tst

Persistent

Proprietary 3rd party data stored for Maxymiser

Used to provide the multi-variant testing functionality across the site.

mmid

Persistent

Proprietary 3rd party data stored for Maxymiser

Used to provide the multi-variant testing functionality across the site.

pageParameters

Session

The path to the previous page when accessing the My Account section of the site.

Used when the user navigates to the Full Page Ad of one of their saved vehicles in the MyAccount section.  It stores the path that the 'Back to results' link on the FPA should follow, as we want the user to navigate back to their account, not the search results.

pages

Persistent

Accumulative list of page identifier for a selected number of product pages that the user has visited.

This information is provided to the 247 RealMedia banner advert server to provide more relevant display ads to the user.

postcode

Persistent

Postcode of the last new car search search.

This is used to pre-populate the postcode field on the new vehicle search forms (also re-sets the GeoLocation and used vehicle postcode cookie [SearchData]).

rsi_segs

Persistent

Proprietary 3rd party data stored for Revenue Science

Revenue science is used as our online audience monitoring technology, we use them to so that we can deliver more relevant advertising based on the types of sites visited by the users.

s_pers

Persistent

Proprietary 3rd party data stored for Omniture

Omniture is the web analytics which we use to carry out statistical analysis of usage, interactions and paths of the web site.  Only anonymous data is stored in the cookies.

s_sess

Session

Proprietary 3rd party data stored for Omniture

Omniture is the web analytics which we use to carry out statistical analysis of usage, interactions and paths of the web site.  Only anonymous data is stored in the cookies.

s_vi

Persistent

Proprietary 3rd party data stored for Omniture

Omniture is the web analytics which we use to carry out statistical analysis of usage, interactions and paths of the web site.  Only anonymous data is stored in the cookies.

s_lastvisit

Persistent

Proprietary 3rd party data stored for Omniture

Omniture is the web analytics which we use to carry out statistical analysis of usage, interactions and paths of the web site.  Only anonymous data is stored in the cookies.

s_sq

Session

Proprietary 3rd party data stored for Omniture

Omniture is the web analytics which we use to carry out statistical analysis of usage, interactions and paths of the web site.  Only anonymous data is stored in the cookies.

searches

Persistent

Stores the last used and new vehicle makes and models searched

This information is provided to the 247 RealMedia banner advert server to provide more relevant display ads to the user.

ursid

Persistent

The unique URS registration identifier for the current user.

This allows us to identify a user (and subsequently their account details) who has logged in to the web site on a previous browsing session.

urss

Session

The unique URS registration identifier for the current user.

This allows us to identify a user (and subsequently their account details) who has authenticated themselves on this browsing session.

user

Persistent

First name, Postcode, Gender, Year of birth

This is used to complete the greeting across the top of the web site, we also pass some of this information on to our banner advert server to allow us to serve more relevant display ads.

userid

Persistent

Unique identifier for the user's account in our old registration system, or, a unique alpha-numeric string which remains between browsing sessions.

Used to identify the user's account across requests and browsing sessions, or, if the user is not logged in, it is used to identify the same unique user across browsing sessions.  This applies to the old registration system only.

bikeLearningZone

Persistent

The options the user selected for their bike license status and age.

Used to display relevant content within the bikes learning zone area for that user which depends on the type of license held which is stored in the cookie.

s_NI

Persistent

Flag to indicate the user has been recognised as a Northern Ireland user based on their IP address.

Used to identify that the user has been recognised as being targeted for the NI micro site so that upon first access to .co.uk, they are sent to that site instead of the UK site.

NISEARCH

Persistent

Flag to indicate which of the two sites (UK and NI) the user should be sent to, based on their preference when prompted on the site (e.g. upon entering a NI post code).

Ensures that if the user had opted to be sent to the UK site, but was initially targeted for the NI site, that we send them to their preferred site.

MobiRedirect-User

Session

Flag to indicate a mobile user wants to go to the Desktop site.

To provide functionality to allow mobile users to view the desktop version of their site on their mobile device.

_utma, _utmz

Persistent

Google Analytics data

This is used to understand behaviour and statistics across certain sections of the autotrader.co.uk site.

survey Persistent Identifier representing the areas of the site a user has visited Used to determine the appropriate survey to display to end users
bucket Session Classifies the device accessing the website. Possible values are desktop, premiummobile, legacymobile or tablet Enabling server side components to determine the appropriate presentation of the website for the device
_ATD_DIGEST_, _ATD_SESSION_ Session Unique identifier for this browser's session Used to identify malicious / suspicious activity on the website.
traderClub Persistent Identifier indicating if a user is a Trader Club Member Used to see if the user is a Trader Club Member
survey.bikes.response Persistent yes / no Records that you have agreed or declined to take part in a survey relating to bikes, so that we do not prompt you about it again for at least 30 days
survey.bikes.visit Persistent number of visits Counts the number of times you have visited an area of the site relating to bikes, as we might not prompt you for feedback if this is one of your first visits
survey.bikes.session Session true Allows us to increase the bikes visit count once per browser session
survey.cars.response Persistent yes / no Records that you have agreed or declined to take part in a survey relating to cars, so that we do not prompt you about it again for at least 30 days
survey.cars.visit Persistent number of visits Counts the number of times you have visited an area of the site relating to cars, as we might not prompt you for feedback if this is one of your first visits
survey.cars.session Session true Allows us to increase the cars visit count once per browser session
cookiePolicy Persistant true We are required to alert users that cookies are used on our website for various purposes that are explained in more detail on this page. To prevent this message from displaying continuously to users, we set a cookie that records that this message has been presented to you.
fsr.s cookie Persistant set by the ForeSee survey We use third party companies to provide survey functionality to our users on our site. The cookies set by these companies allow us to track your interactions with the website for the purpose of providing of associting your journey around our site with the information you provide when we ask you to complete a survey. We also use cookies to ensure that once you've completed the survey, we don't ask you to complete it again.
fsr.sp cookie Persistant sets the fsr.s cookie with some values when an invitation is displayed or attempted to be displayed previously We use third party companies to provide survey functionality to our users on our site. The cookies set by these companies allow us to track your interactions with the website for the purpose of providing of associting your journey around our site with the information you provide when we ask you to complete a survey. We also use cookies to ensure that once you've completed the survey, we don't ask you to complete it again.
fsr.r cookie Persistant prevents user from being invited again for x number of days We use third party companies to provide survey functionality to our users on our site. The cookies set by these companies allow us to track your interactions with the website for the purpose of providing of associting your journey around our site with the information you provide when we ask you to complete a survey. We also use cookies to ensure that once you've completed the survey, we don't ask you to complete it again.
myCar Persistant Stores the most recent valuations of vehicles stored in My Car. We use cookies to store various pieces of information to improve both the user experience and performance of the My Garage and My Car areas of the website, inluding the most recent valuation of vehicles stored in My Car. These cookies do not contain personally identifiable information.