Cookie declaration

The Leiden University website (universiteitleiden.nl) uses cookies. Cookies are small files that are placed on your computer, tablet or phone when you visit the website. For example, we use cookies to analyse visits to our website in order to improve ease of use.

By law, we are allowed to place cookies that are essential for the functioning of the website. For other cookies, we need your permission. When you visit our website for the first time, you can either accept or reject non-essential cookies. You can change your choice at any time at the end of this page.

Types of cookies

This website uses three types of cookies:

• Functional cookies: These are always enabled. Functional cookies are needed for the website to work.
• Analytical cookies: These are always enabled. Analytical cookies allow us to measure how visitors use our website. Cookies are placed from the 'Google Analytics' service of the American company Google. The information that is collected is made anonymous as much as possible and cannot be traced back to an individual visitor. We only use this data to obtain an overall impression of the number of visitors to the website, the most frequently visited pages, search queries, etc. Based on this information, we can improve the website if necessary.
• Tracking cookies: These are only placed after you have consented via the 'Accept cookies' button. Tracking cookies (also known as marketing cookies) are used to track your visit to our website. This information can be passed on to other websites so that they can show you targeted advertising. Some content on our website, such as Youtube videos, can only be shown if you have accepted these cookies.

Cookies overview

Cookies that are always set

Name	Cookie lifetime	Tool	Category	Cookie information
_ga	24 months	Google analytics	analytical	This cookies is used by Google Analytics to distinguish unique users by assigning a randomly generated number as client identifier
_gat_UA-65023507-1	1 minute	Google Analytics	analytical	This cookie is used to read and filter requests from bots. It does not collect any information.
_gid	1 day	Google analytics	analytical	Registers a unique ID that is used to generate statistical data on how the visitor uses the website. This cookie is used by Google Analytics to track user behaviour.
JSESSIONID	Session	WebSphere Commerce Suite / WCS	functional	This is a general purpose platform session cookie, set by sites running on JavaServer Pages. The cookie is used to maintain an anonymous user session on the server.
ROUTEID	Session	WebSphere Commerce Suite / WCS	functional	This cookie gives the visitor the best possible performance when using and navigating around the website.

 

Cookies that are only set after consent

Name	Cookie lifetime	Tool	Category	Cookie information
_gcl_au	3 months	Google Adwords	Social/ Marketing/ Advertising	This cookie is set automatically by Google Adwords to identify and recognize the user. It is enables us to use Google Adwords for remarketing and to use the whole functionality of Google services
cookie_accepted			functional	This cookie stores the user's cookie settings.
cookie_hide_notification			functional	This cookie hides the cookie message after the user has submitted their cookie settings.
datr	2 years	facebook	Social/ Marketing/ Advertising	Cookie to prevent fraud.
sb	2 years	facebook	Social/ Marketing/ Advertising	Cookie to store browser details.
fr	3 years	facebook	Social/ Marketing/ Advertising	Cookie for ad delivery or ad retargeting.
fbp	3 months	facebook	Social/ Marketing/ Advertising	Cookie used for storing and tracking visits across the website.

 

Deleting cookies

After visiting the website, you can manually delete the cookies that have been stores on your computer, tablet or telephone if you wish. Please consult the help function of your browser.

Changing your cookie settings

Our website always sets functional and analytical cookies. You can accept or decline additional cookies (tracking cookies) by using the buttons below. 

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