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The information on this page relates to PDMS' website. You should read this policy so that you can understand what type of cookies we use, the information we collect using cookies and how that information is used. 

What are cookies?

Cookies are little text files which are stored on the browser or hard drive of your computer or mobile device when you visit a webpage or application. Cookies work to make your experience browsing our site as smooth as possible and they remember your preferences, so you don’t have to insert your details again and again.

There are different types of cookies. Some cookies originate directly from our website and others are provided by third parties, whose services are integrated into our site.

Cookies are stored for varying lengths of time on your browser or device. If the cookie relates only to a particular visit (session), then they are deleted from your computer or device when you close your web-browser. Persistent cookies will remain stored on your computer or device until deleted or until they reach their expiry date.

There are 4 types of cookies which operate on our website:

1. Essential | In order for you to be able to fully experience the functionality of our site, it is necessary for some cookies to be placed on your device. Without these cookies, some parts of our site just won’t work as they should.

2. Functional | These cookies allow our users to customise how a website looks for them; they can for example, remember usernames, language preferences and regions and remembering if you’ve been to the site before so that messages intended for first-time users are not displayed to you.

3. Performance | In order for us to know about how our site is used and to help us to make it better we use some cookies. For example, these cookies count the number of visitors to our website and see how visitors move around when they are using it. This helps us to improve the way our site works, for example, by ensuring that users find what they are looking for easily.

4. Advertising | These cookies are used to deliver advertised content which is relevant to you and they can be used to chart the effectiveness of an ad campaign by tracking users’ clicks. These cookies are placed on our site by our third party service providers and they may remember your web browsing activity and may be used to understand about your demographics, such as age and gender. Only anonymised information is captured and used and the purpose is to provide you with content which is relevant to you.

How to control and delete cookies

We will not use cookies to collect personally identifiable information about you.

However, if you wish to accept, refuse, restrict, or delete, the cookies which are set by our website, or indeed any other website, you can do this through your browser settings. The 'Help' function within your browser should tell you how.

Alternatively, you may wish to visit which contains comprehensive information on how to do this on a wide variety of browsers. You will also find details on how to delete cookies from your machine as well as more general information about cookies.

Please be aware that restricting cookies may impact on the functionality of our website, and you may be unable to access certain areas of our website and / or certain functions and pages will not work in the usually expected way.

To opt-out of third-parties collecting any data regarding your interaction on our website, please refer to their websites for further information.

Cookies for your security

On our website we use a cookie called "_RequestVerificationToken" to help protect you against a specific form of malicious attack called Cross Site Request Forgery. Searching for this term will reveal a wealth of information about this potential vulnerability, and how it is closed through the use of cookies.

Cookies for managing your current visit

To remember who you are as you move from page to page of the website, particularly after logging in to a service.

We use a number of "session" cookies which may include "fw-session" and "ASPSessionIDrandomletters". These store your session ID to allow the site to recognise your movement around the site as being from one computer. These cookies expire when you close your browser or log out, and contain no personal information about you.

Cookies to support specific elements of the site

Some elements of our website use cookies to make them easier to use. These may include:

Cookies set by other websites through this site

We want to provide interesting and engaging content on our website. On a number of pages we embed media such as YouTube videos. The suppliers of these services may also set cookies on your device when you visit the pages where we have used this type of content. These are known as 'third-party' cookies. We do not control how a third party uses their cookies. You should check these third-party websites' privacy policies for more information about their cookies if you are concerned about this.

Cookies used on 

Cookie Name

Where it’s from




Click Dimensions

It is a unique user session identifier to track page visits on the site for up to

30 minutes from set/update


Click Dimensions

This cookie is used to determine unique visitors to the site and it is updated with each page view

2 years from set/update


Click Dimensions

Used to signal the last time a visitor viewed a page

30 minutes from set/update


Hotjar cookie


Hotjar script

This cookie is when the customers first lands on a page with the Hotjar script. It is used to persist the random user ID, unique to that site on the browser. This ensures that behaviour in subsequent visits to the same site will be attributed to the same user ID

1 year




This cookie is associated with web analytics functionality and services from Hot Jar. It uniquely identifies a visitor during a single browser session and indicates they are included in an audience sample.



Google Analytics

New GA cookie as of spring 2017. Appears to store and update a unique value for each page visited.

24 Hours


Google Universal Analytics

This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page request in a site and used to calculate visitor, session and campaign data for the sites analytics reports. By default, it is set to expire after 2 years, although is it customisable by website owners

2 years


Google universal Analytics

It is used to throttle the request rate- limiting the collection of data on high traffic sites. It expires after 10 mins.

10 mins



Used to speed up page load times. According to Cloudfare it is used to override any security restrictions based on the Ip address the visitors is coming from. It does not contain any user identification information.




This cookie is written to help with site security in preventing Cross-Site Request Forgery attacks.

2 years



This cookie is written to help with site security in preventing Cross-Site Request Forgery attacks

2 years



This cookie is set by websites using the Umbraco web content management system. It is usually only seen by site administrators accessing the back end of the website, rather than general visitors



Google ad sense

For experimenting with advertisement efficiency across websites using their services

2 years



These cookies are generally used for analytics and help count how many people visit a certain site by tracking if you have visited before. Has a life span of 1 year

1 year



These cookies track visitor usage and events withing the website. Cookies in this domain have a lifespan of 1 year.

1 year



This cookie helps tracks visitor usage, events target marketing, and can also measure application performance and stability. Lifespan of 1 year.

1 year



Load Balance Session Queue.  Standard session cookie served by the web server.




Anonymous Visitor ID.  Does not store user data, only stores active menu node over post-back.

2 year



IIS Session Code. Standard session cookie served by the web server.




Stores the UTM values for the session. Does not store user data, only stores active menu node over post-back.