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Updated May 2018Cookie Policy

Use of cookies

To make this site secure, useful, and easy to use, we sometime place small data files on your computer or mobile phone. These data files are known as cookies. Nearly all websites do this, including commercial and Government websites.

We use cookies to help us:

  1. Remember the information you have already typed in, so you don't need to keep re-entering it.
  2. Make the site more secure and protect it against attacks.
  3. Measure how you use the website so we can make sure it is useful and meeting your needs.

Our cookies are not used to identify you personally. They contain non-identifiable information only, in most cases just a string of randomly generated numbers and letters. You are free to manage and delete these cookies as you wish.

To learn more about cookies, including how to delete them, we recommend the following resource: www.aboutcookies.org.

Cookies for security

Name Content and description Expires
csrftoken Randomly generated numbers and letters, used to help prevent Cross-site Request Forgery attacks 1 year
__cfuid In order to protect our website from security threats such as hackers and to boost its performance, our web host routes our DNS through CloudFlare. This cookie is set by the CloudFlare service, and is used to override any security restrictions based on the IP address the visitor is coming from 6 years

Cookies for measuring website usage

We use Google Analytics to collect information about how people use this site. For example, what you click on, how long you spend on the site and how you got here. We've opted to use a tracking code that supports Display Advertising in order to use Google Analytics' Demographics and Interest Reporting. This allows us to adjust the content on our website according to the demographics (such as age, gender and interests) of visitors to particular pages.

You may opt-out of Google Analytics for Display Advertising and customise Google Display Network ads by using the Ad Settings on Google’s website.

You can find out more about opting out of Google Analytics, here.

Name Content and description Expires
_ga Randomly generated number, used to distinguish users. 2 years
_gat Randomly generated number, used to throttle request rate. 10 minutes
sessionid Signed, Base64-encoded serialised JSON. Used to store information related to your current session. e.g. if you are logged in or not, or remembering your search preferences. When you close your browser