Friday, 01 August 2014

Cookies - Last Updated 24th May 2012

Cookies - what they are

Cookies are small files that are stored by your web browser as you use the web.

They are designed to hold a tiny amount of data to allow websites to do things like remember your settings, whether you are logged in or not or whether you have visited the site before.

How and why this site uses cookies.

This website makes use of cookies for the following reasons.


Cookies are essential to our sign-in mechanism. They allow the site to remember that you have signed in when browing around the site. You may need to be signed-in to the site to access some services such as content that is only available to subscribers.

Web Analytics

In common with most websites we use a system to measure the amount of traffic to our site. This system is called SiteCatalyst and is provided to us by a company called Adobe.

It allows us to understand things like how many people have viewed our site in a given period, how often people visit and what the most popular types of content are. We use this information to help us improve the site in lots of ways. For example, we may realise something we think is a particularly good bit of content is not being viewed as often as we would expect, we may then decide to make that content more easy to find via the site navigation options.

In most cases the information processed by the SiteCatalyst system is anonymous. However, if you are logged in to the site then in theory we are able to match the information you provided to us when you registered with what you have viewed on the site.


As a media company, Advertising is an essential revenue stream for us so we use a system referred to as an "Ad Server" to make our advertising as effective as possible for our advertising clients, whilst being as relevant as possible for our audience.

The Ad Server allows us to do things like:

  • Serve ads that are relevant to the content being read. For example, if you are reading an article about digital marketing then ads from digital marketing service suppliers may appear next to the article.
  • Ensure that you only see a particular ad a limited number of times each time you visit the site.
  • Serve particular ads a limited number of times in total.
  • Target ads to your geographic location. So if you are viewing the site in Glasgow we may show you a different set of ads to what someone in London might see.

Third-party Advertising - Some of the ads that we serve are contain code from third-parties. These third-parties may create cookies so that they can understand how many people have seen an ad across all the websites it appeared on. We do not share any of our user information with third-parties so the information they can gather by this mechanism is entirely anonymous and will be viewed at an aggragated rather than an individual level.

Behavioral Targetting - Some of the advertising that appears on this site is "behaviorally targetted". This means that you may see advertising based on what you have looked at previously on this site or other sites

Social Networks and Sharing Sites

On many pages on this site you will see buttons that allow you to share items of interest through Social Networks such as Facebook and other sites that enable sharing such as These buttons may also create cookies within your browsers.

How to manage cookies

You have several options to allow you to block or delete cookies that are created by this and other websites.

Browser Settings

All major browsers allow you to manage the cookies that they accept and store. To find out how to use these options please follow the appropriate link for you browser:

Advertising Industry and Supplier Websites

Your Online Choices - This website is maintained by the iab in parnership with most of the advertising industries major suppliers. It allows you to opt-in or out of behavioral targetting from a huge array of vendors.

Audience Science - Audience Science is the supplier of our behavioral targetting system. If wish to opt-out from their system they provide an option for you to do this here.

On the site -

We are currently investigating a number of options to allow you to control all of the cookies created by this site from within the site itself. We will be updating this page regularly and keeping our audience informed of changes as and when they happen.

Digital Edition

The Engineer July Digi Issue


London Mayor Boris Johnson is lobbying for a £10 additional charge for diesel cars to drive into Central London by 2020, and for road tax on diesel cars and all pre-2006 cars to be increased, to counter air pollution. What option most closely matches your opinion on this?

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