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The most effective way to do this is to disable cookies in your browser. We suggest consulting the Help section of your browser or taking a look at the about cookies website which offers guidance for all modern browsers.

Information about our use of cookies

Our site uses cookies to distinguish you from other users of our site. This helps us to provide you with a good experience when you browse our site and allows us to improve our site. Detailed information on the cookies we use and the purposes for which we use them is set out below. By continuing to browse the site, you are agreeing to our use of cookies.

A cookie is a small file of letters and numbers that we store on your browser or the hard drive of your computer if you agree. Cookies contain information that is transferred to your computer’s hard drive.

The following cookies are present on the www.spectra-group.co.uk domain for public users. Cookies marked in bold text are 1st party and set by the domain .spectra-group.co.uk

Spectra Group (UK) does not collect personal information such as postal address, full name or telephone numbers via these cookies. Spectra Group (UK) is not responsible for cookies set from 3rd party domains. Unless stated, cookies will expire when the browser session ends.

We use the following cookies:

  • Strictly necessary cookies. These are cookies that are required for the operation of our website. They include, for example, cookies that enable you to log into secure areas of our website, use a shopping cart or make use of e-billing services.
  • Analytical/performance cookies. They allow us to recognise and count the number of visitors and to see how visitors move around our website when they are using it. This helps us to improve the way our website works, for example, by ensuring that users are finding what they are looking for easily.
  • Functionality cookies. These are used to recognise you when you return to our website. This enables us to personalise our content for you, greet you by name and remember your preferences (for example, your choice of language or region).
  • Targeting cookies. These cookies record your visit to our website, the pages you have visited and the links you have followed. We will use this information to make our website and the advertising displayed on it more relevant to your interests. We may also share this information with third parties for this purpose.

You can find more information about the individual cookies we use and the purposes for which we use them in the table below:




More Info




A security cookie that verifies the user as a whitelisted individual. It expires after 1 year.




A test cookie used to measure the performance of Google Advertising. It expires after 15 minutes.




Facebook tracks opted-out Facebook users with a cookie (fr) that is used for advertising purposes.



Session Cookie

The PHPSESSID cookie is native to PHP and enables websites to store serialised state data. It is used to establish a user session and to pass state data via a temporary cookie, which is commonly referred to as a session cookie.



EU Compliance

User compliance with Google’s data collection policies.




Used to distinguish users over a long period of time (2 years). It expires after 2 years.




Used to throttle request rate and prevent cookies from constantly firing. It expires after 1 minute.




Used to distinguish users over a short period of time (24 hours). It expires after 1 day.




Used to gather website statistics, and track conversion rates. It expires after 1 month.



Third Party

The NID cookie contains a unique ID Google uses to remember your preferences and other information, such as your preferred language (e.g. English), how many search results you wish to have shown per page (e.g. 10 or 20), and whether or not you wish to have Google’s SafeSearch filter turned on.



Server Performance

Improves the performance of Azure hosted software.

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