Essential cookies are automatically placed on your computer or device when you access our website or take certain actions on our website. Non-essential cookies and other technologies are only placed on your computer or device if you have consented to us doing so. You consent to us placing non-essential cookies on your computer or device by continuing to use our website with your browser settings set to accept cookies.
For information on the difference between essential and non-essential cookies, see the section below called About cookies.
For information on how you consent and how you can withdraw your consent to us placing non-essential cookies and other technologies on your computer or device, see the section below called How to accept or reject cookies.
What are cookies?
Cookies are small data files sent by a website’s server to a web browser, processor memory, or hard drive and stored there. They can be used for a range of different purposes, such as customizing a website for a particular user, helping a user navigate a website, improving that user’s website experience, and storing that user’s preferences and login information.
- Essential and non-essential cookies
Cookies can be classified as either essential’ or ‘non-essential.
Essential cookies: these are cookies that are either
- Used solely to carry out or facilitate the transmission of communications over a network
- Strictly necessary to provide an online service (such as our website or a service on our website) that you have requested.
Non-essential cookies: these are any cookies that do not fall within the definition of essential cookies, such as cookies used to analyze your behavior on a website (analytical cookies) or cookies used to display advertisements to you (advertising cookies).
- Session and persistent cookies
Cookies can be classified as either session or persistent, depending on how long they last after they are placed on your browser.
Session cookies: session cookies last for as long as you keep your browser open. They expire when you close your browser.
Persistent cookies: persistent cookies expire at a fixed point in time or if you manually delete them from your browser, whichever occurs first.
- First- and third-party cookies
Cookies can be classified as first party or third party.
First-party cookies: these are cookies placed on your device by our website domain.
Third-party cookies: these are cookies placed on your device by third-party website domains.
- Cookies used on our website
|Name of Cookie||Type of Cookie||First- or Third- Party Cookie||Session or Persistent||Purpose|
|_ga||Non-essential (analytical)||First-party||Persistent (2 years)||Google Analytics cookie used to distinguish users on a website to generate statistical information about their use of the website|
|_gat||Non-essential (functional)||First-party||Session||Google Analytics cookie used to throttle number of requests received by users|
|_gid||Non-essential (functional)||First-party||24 hours||Google Analytics cookie used to distinguish users on a website to generate statistical information about their use of the website|
|_gac_<property-id>||Non-essential (functional)||First-party||90 days||Google Analytics cookie used to track campaign-related information for the user|
|visitor cookie||Non-essential (functional)||First- and third-party||Session||Pardot cookie for a unique visitor ID used to track page visits|
|pi_opt_in||Non-essential (functional)||First- and third-party||Session||Pardot cookie used to track opt-in preferences|
How to accept or reject cookies
There are a number of different ways in which you can accept or reject some or all cookies. Some of the main methods of doing so are described below.
You are welcome to block the use of some or all of the cookies we use on our website. However, please be aware that doing so may impair our website and its functionality or may even render some or all of it unusable.
You should also be aware that clearing all cookies from your browser will also delete any cookies that are storing your preferences; for example, whether you have accepted cookies on a website or any cookies that are blocking other cookies.
Changing your browser settings
You can accept or reject some or all cookies (for example, blocking all third party cookies) by adjusting your browser settings. If you do not know how to do this, the links below set out information about how to change your browser settings for some of the most commonly used web browsers:
Some browsers, such as Chrome and Firefox, allow you to change your settings to browse in incognito mode, limiting the amount of data placed on your machine and automatically deleting any persistent cookies placed on your device when you finish your browsing session. There are also many third party applications which you can add to your browser to block or manage cookies.
You can opt out of Google Analytics tracking by installing the browser add-on, which is available here.
Clearing existing cookies
To clear cookies that have previously been placed on your browser, you should select the option to clear your browsing history and ensure that the option to delete or clear cookies is included when you do so.