What is a Cookie?

A cookie is a technology for remembering information between webpages. Because of cookies, your web browser can remember you are logged in, or have visited a site before, or what your personal preferences are.

In reality, a cookie is a small text file which is stored by the user’s browser. The cookie only contains data, not code, so it can’t contain a virus or spyware. This doesn’t mean that all cookies are harmless in intent, but they can only ever store information.

A cookie remembers information about a specific website, for example.


This information is restricted to a specific domain, e.g.


The domain prevents other websites from accessing each other’s cookies. However there are ways that websites can share information as we’ll see.

Session Cookie

A session cookie expires when the user closes their browser, and sometimes just after a certain period of time has elapsed (for example, on mobile devices, where the concept of ‘closing your browser’ is less relevant).

Sessions are therefore ideal to remember – for example – if a user has logged in to a website. When they close their browser they are automatically logged out. They are usually considered relatively unobtrusive from a privacy perspective.
<>Persistent Cookie

A persistent cookie expires after a fixed date, for example after one year. They are not cleared when the user closes their browser.

A common use of a persistent cookie is the “Keep me logged in” box found beneath many login areas. For this to work, the cookie must be stored after the user closes their browser.

However persistent cookies are also used to track users in unexpected ways. For example, if you visit Google they give you a unique cookie to track you with. They can then use this cookie to recognise and link your behaviour between their many sites – they might for example know what you search for, what websites you visit etc. They can then use this information to target advertising at you on those same sites.

Performance cookie

Questi cookie raccolgono informazioni su come gli utenti utilizzano un sito web, ma non memorizzano informazioni che identificano un visitatore. Questi cookie vengono utilizzati solo per migliorare il funzionamento del sito web.
Utilizzando il sito l’utente accetta che tali cookie possono essere memorizzati sul proprio dispositivo.

Performance Cookie

A first party cookie is restricted to the same domain as the website you are viewing. For example, if you were visiting www.nevmobility.eu, a first party cookie would only be readable by pages inside www.nevmobility.eu.

Third Party Cookie

A third party cookie is set by a domain other than the one the user is visiting. For example, if a user visits www.example-one.com, a third party cookie might be set by www.example-analytics.com. Now if the user visits www.example-two.com, this website could also use the third party cookie set by www.example-analytics.com. In effect, the user is recognised between sites.

The reality is more complex. In this example neither www.example-one.com or www.example-two.com can actually see the cookies being set, only www.example-analytics.com can. However there is nothing stopping www.example-analytics.com from collecting information in this way and sharing it with others, including the other two websites.

Third party cookies are most commonly used for tracking users by advertising networks, search engines and social media sites. For something like the Facebook Like button to work on websites other than Facebook’s, third party cookies are essential. However, because they allow tracking between websites that a user may not expect, they are generally frowned upon by privacy advocates.

How browsers control cookies

All major browsers provide security controls for cookies. Generally these allow users to choose to block all cookies, to only allow specific cookies, or to block third party cookies.

The official standards for cookies (RFC 2109 and RFC 2965) say that by default browsers should block third party cookies. However almost all browsers permit them, as long as the website setting the cookie has a P3P privacy policy installed, which is a simple system for stating what your website’s privacy policy is. In reality, a P3P policy can be empty or unused, allowing third party cookies regardless.

Google Analytics

This website uses Google Analytics, a web analytics service provided by Google. Google Analytics uses cookies to help the website analyze how users use the site. The information generated by the cookie about your use of the website (including your anonymous IP address) will be transmitted to and stored by Google on servers in the United States. Google will use this information for the purpose of evaluating your use of the website, compiling reports on website activity for the operators and providing other services relating to website activity and internet usage. Google may also transfer this information to third parties unless required by law or where such third parties process the information on Google’s behalf. By using this website, you consent to the processing of data about you by Google in the manner and purposes set out above.

You can prevent Google detection of a cookie that is generated as a result of and related to your use of this website (including your IP address) and the processing of such data by downloading and installing this plugin to your browser:


How to disable cookies in our website
INTERNET EXPLORER How to disable cookie if you use IE CLICCA QUI
CHROME How to disable cookie if you use GOOGLE CHROME CLICCA QUI
FIREFOX How to disable cookie if you use FIREFOX MOZILLA CLICCA QUI 
SAFARI How to disable cookie if you use SAFARI CLICCA QUI  


How to disable cookie if you use OPERA CLICCA QUI 

If you need more information or if you have questions about the privacy policy of this website please contact us by email at  info@nevmobility.eu