Cookie policy

This website uses cookies. We use technologies, such as cookies, to make your browsing experience easier and to analyse website traffic.

What types of cookies are there?

Essential cookies
Essential cookies are cookies that are necessary for a website to function. They enable basic functions such as page navigation, security and loading time to work.

Functional cookies
Functional cookies are cookies that store information about your choices and preferences on a website. For instance, they remember your choice of language, login details or the region you live in.

Analytical cookies
Analytical cookies collect information about website visitor behaviour and website performance. Based on the results, the website can be improved and visitors get a better user experience.

Marketing cookies
Marketing cookies track website visitors' browsing behaviour and compile a user profile on that basis. That profile is used to personalise the browsing experience and, for example, to display personalised offers, advertisements, newsletters and the like that match your interests.

Which cookies do we use?

First party cookies

UNLOCK THE CITY! mainly uses first party cookies or direct cookies that serve to improve your user experience on That is, they only collect information on our website itself. They control the technical part of the website and remember certain things about the visitor, such as language choice, page visited and time spent on the website.

Specific overview:

PHPSESSID (session cookie)

  • Type: essential cookie
  • Lifetime: session
  • Purpose: this cookie allows communication between web server and browser and temporarily stores information from your session. It ensures, for example, that you do not have to fill in a form all over again when you reload the page or make an error


  • Type: essential cookie
  • Lifetime: 1 year
  • Purpose: tracking language


  • Type: essential cookie
  • Lifetime: 1 year
  • Purpose: tracking cookie preferences

_utmb (Google Tag Manager)

  • Type: analytical cookie
  • Lifetime: 30 minutes
  • Purpose: determines new sessions and visits

__utmt (Google Tag Manager)

  • Type: analytical cookie
  • Lifetime: 10 minutes
  • Purpose: slows down the search speed, thus ensuring that data collection on high-traffic sites is limited.

__utmz (Google Tag Manager)

  • Type: analytical cookie
  • Lifetime: 6 months
  • Purpose: identifies the source that led you to our website.

__utma (Google Tag Manager)

  • Type: analytical cookie
  • Lifetime: 2 years
Third party cookies

There are also third-party vendors with different domain names that set cookies via the UNLOCK THE CITY! website. Examples include Google and YouTube. They track users' browsing behaviour and create a user profile based on that data.

Overview of third-party cookies on our website:

How can you disable cookies?

You can also disable cookies, delete them or adjust the settings for cookies, although in that case our website will no longer be able to work optimally. Do you want to adjust the settings for cookies anyway? Then you can find instructions for different browsers here:

Mozilla Firefox
Internet Explorer
Google Chrome
Safari (iOS)
Safari (macOS)


UNLOCK THE CITY! has the right to change this cookie policy. This cookie policy was last amended on 29 June 2023.