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How NEST uses cookies

We use cookies to improve your experience on our website. They help us customise our web pages by remembering your preferences, such as font size.

What's a cookie?

A cookie is a small file sent from a website, which is stored by your web browser. When you return to the website the information in the cookie can be used to recognise your last session.

Cookies can't install malicious software such as viruses on your device, whether that’s a computer or a mobile phone. They don't store any of your personal data or account information.

Where do cookies come from?

There are two sources of cookies:

  • First-party cookies are sent by us to your device. They can be used to remember your preferences when you visit our website or to maintain your browser connection.
  • Third-party cookies are sent by a third party that provides functionality through our website, such as video clips. This helps the third party to remember your preferences when you visit our website and others.

How long do cookies stay on your device?

Cookies stay on your device for different periods of time.

  • Session cookies generally only last while you have your internet browser open. Once you close your browser they’re automatically deleted from your device.
  • Persistent cookies generally stay on your device after you close your internet browser unless your browser is set up to automatically delete them. They can be used by websites to remember your preferences when you open up your browser again.

What cookies do we use?

We use three types of cookies on our website:

1. essential cookies

2. analytics and customisation cookies

3. functionality and performance cookies

There's more information about these in the table below.

What happens if you don’t want cookies on your computer?

You have the right to choose whether or not to accept cookies.

Just remember that if you choose to refuse cookies some website functionality may not work for you.

How do you control and delete cookies?

You can block cookies from our website by following the opt-out links in the table below or by changing your internet browser settings. You can also use a third-party tool to manage cookies. 

To change your browser settings please follow the instructions provided by your browser provider. These are normally located within the 'Help', 'Tools' or 'Edit' menus.

Using the third party opt-out links in the table below may not delete the cookie from your browser. It may simply stop the cookie from being sent to your computer in future.

If you want to delete cookies you’ll need to set up your browser to delete them when the browser is closed.

Type of cookie Source Purpose Expiry How to block
Essential cookies  NEST

• Necessary for the operation of our website

• Should be deleted when you close your browser as long as it’s set up to delete them automatically

• Set your browser to reject cookies or


• Use a third-party tool to manage them

Analytics and customisation cookies  NEST

• Help us to understand how our website is being used


• Help us to customise our website for your needs. For example, by remembering your preferred font size

• Most will expire when you close your browser as long as it’s set up to delete them automatically


• One cookie called NetInsight – NiVID will last for 18 months from your last visit to our site

• Change your browser settings to reject them or


• Use a third-party tool to manage them

Functionality and performance cookies YouTube, owned by Google

• YouTube uses Adobe Flash files which are also called Flash cookies


• The cookies improve the functionality of our website but are not essential to its use


• Without these cookies certain functionality like videos may be unavailable


• The information collected by Google may be shared with third parties and used to send you adverts when you browse the internet. You will not be identified personally


• Find out more about Google cookies

• Flash cookies are stored indefinitely unless your browser is set up to automatically delete them


• Other YouTube cookies may last up to eight months from your last visit to our site

• Disable cookies by following instructions at Google


• Refuse Flash cookies by visiting Adobe's web settings manager


• Use a third-party tool to manage them