Privacy and Cookies

When we provide services, we want to make them easy, useful and reliable. Where services are delivered on the internet, this sometimes involves placing small amounts of information on your device, for example, computer or mobile phone. These include small files known as cookies. They cannot be used to identify you personally.

These pieces of information are used to improve services for you through, for example, enabling a service to recognise your device so you don't have to give the same information several times during one task; recognising that you may already have given a username and password so you don't need to do it for every web page requested; measuring how many people are using services, so they can be made easier to use and there's enough capacity to ensure they are fast.

You can manage these small files yourself and learn more about them through advice on (external link).

Our use of cookies on

Cookies for improving service

CEH cookies: CEH uses a cookie to store a random string on your computer to enable session state between Active Server Pages. We do not collect any information about you except that required for system administration of the web server.

Typical content: randomly generated letters
Expires: when user exits browser

Google Analytics: CEH uses the Google Analytics service. Google Analytics sets cookies to help us accurately estimate the number of visitors to the website and volumes of usage. This allows us to ensure that the service is available when you want it and fast.

Name: _utma
Typical content: randomly generated number
Expires: 2 years

Name: _utmb
Typical content: randomly generated number
Expires: 30 minutes

Name: _utmc
Typical content: randomly generated number
Expires: when user exits browser

Name: _utmz
Typical content: randomly generated number and info on how the site was reached (e.g. directly or via a link, organic search or paid search)
Expires: 6 months

For further details on the cookies set by Google Analytics, please refer to their information here.

WebTrends: CEH uses the WebTrends service. WebTrends sets cookies to help us accurately estimate the number of files downloaded from our website and volumes of usage of non-HTML elements. This helps us improve the service to our visitors and archive what is not used.

Typical content: randomly generated number
Expires: 2 months

For further details on the cookies set by WebTrends, please refer to WebTrends’ privacy policy.

Wetlands & Climate Change Tool: A CEH cookie allows users who have previously used this tool to access it without having to agree to the click-through licence again.

Name: wetland_vision
Typical content: flag set if Wetlands tool has been visited
Expires: 2 years

Third party services

When we provide links to third party services we think you will find useful, they may place a cookie on your device to make their service easier to use. Their policy on use may be found here:

Twitter and Flickr will only place cookies on your device if you click through to their websites. The AddThis service will place cookies (named _csoot and _csuid) on your device if you use its sharing service whilst on the CEH website.

Email addresses

Persons downloading software from our website may have their e-mail address recorded, and this information may be used for CEH's marketing purposes. These e-mail addresses will not be provided to anyone outside CEH.


Summary of terms

Browser: Used to locate and display web pages via a software application.

Cookie: Message given to a web browser by a web server. The message is then stored by the browser at a location on the user's hard disc. Each time the browser requests a page from the server, this message is sent back.

Cookies are often used to identify users and personalise their visit by customising web pages for them for example by welcoming them by name next time they visit the same site. A site using cookies will usually invite you to provide personal information such as your name, e-mail address and interests.

IP (Internet Protocol): All networks connected to the internet speak IP, the technical standard which allows data to be transmitted between two devices. TCP/IP (Transmission Control Protocol/Internet Protocol) is responsible for making sure messages get from one host to another and that the messages are understood.

IP address: If you are connected to the Internet you have one, for example it may look something like this:

Web Server: Delivers (serves up) web pages to your computer.

Active Server Pages: Dynamic (interactive) web pages which include web feedback forms, login pages and pages which connect to a database.

Session State: A way of remembering you between active server pages.