How we use cookies

A cookie is a small piece of text that can be stored by your browser when you surf the Internet.

Cookies are used to store information as you move from page to page inside a website. Common uses are to enable shopping basket functionality or to ensure you do not need to set language preferences each time you move to a new page within a site.

Although some personal information is tracked using analytics cookies (such as your browser settings and location). None of the cookies used within this site enable us to track information on individual users. The data generated is used to create a picture of an 'average' user.

Cookies we use are:

Cookie Name	Cookie Provider	Expires After	Description of Cookie
_utma	Google Analytics	2 years	This keeps track of the number of times a visitor has been to the site, when their first visit was, and when their last visit occurred. More Information
_utmb	Google Analytics	30 minutes	This cookie helps calculate how long a visit takes by collecting a timestamp of the exact moment in time when a visitor enters the site. More Information
_utmc	Google Analytics	End of session	This cookie helps calculate how long a visit takes by collecting a timestamp of the exact moment in time when a visitor leaves the site. It stays for 30 minutes for another pageview to happen, and if it doesn’t, it expires. More Information
_utmz	Google Analytics	End of session	This keeps track of where the visitor came from, what search engine was used, what link was clicked on, what keywords used, and where in the world the site was accessed from. More Information
_atuvc	AddThis	2 years	The _atuvc cookie is created and read by the AddThis social sharing site JavaScript on the client side in order to make sure the user sees the updated count if they share a page and return to it before our share count cache is updated. No data from that cookie is sent back to AddThis and removing it when disabling cookies would cause unexpected behavior for users. More Information
Coyote-2-cfe4ed19	Load Balancer Cookie	End of session	The Coyote-2-cfe4ed19 cookie is created as soon as a visitor loads the website. It is a functional cookie used by a load balancer to assign a server to a visitor. Removing it when disabling cookies would cause unexpected behavior for users.
Select Biosciences	Select Biosciences User Cookie	5 years	The Select Biosciences cookie is created once a user has logged in to the website. It's primary use is to allow a user to access their control panel without the need to reauthenticate. It is also used to help better understand how users interact with our website so improvements can be made.
is_returning	Crazy Egg	5 Years	This cookie tracks whether a visitor is new or returning. It is used only to provide insight into how visitors interact with the website.