Cookies

www.cbs.nl (and other websites falling under the cbs.nl domain) uses cookies and web statistics. Below you can read why. And you can see exactly which cookies www.cbs.nl places and for what purpose.

Two different legal instruments apply to cookies:

  • General Data Protection Regulation
  • Dutch Telecommunications Act

General Data Protection Regulation

www.cbs.nl uses cookies for research and web statistics to analyse how visitors use the website. This information helps to improve the website. For example, by adding more information and increasing user-friendliness.

This is why, like all other websites, www.cbs.nl collects the IP addresses of website visitors. These are stored in so-called log files, which are kept for 90 days. Storage and viewing of these files are strictly for security purposes.

CBS has taken measures to minimise the traceability of its website visitors. This is achieved by letting Google Analytics remove the final octet (group of eight bits) of each IP address immediately. From all IP addresses processed by Piwik Pro the final 2 octets (2 groups of eight bits) are immediately removed.

This means it is no longer possible for CBS to process any personal data, as no such data reach CBS.

No personal data whatsoever are shared with third parties unless this is necessary to report criminal offences.

Dutch Telecommunications Act

In general, websites must ask users for their consent before they place cookies. The so-called Dutch Cookie Act makes an exception for cookies that are not privacy-sensitive. For example, cookies that are necessary for the proper functioning of the website.

Essential cookies

No user consent is necessary for cookies that do not invade the privacy of users. These are often cookies which are necessary for improved functionality of the website.

Cookies for proper functionality of the website
NameAttribute
_c49b3Identification of browser session
Website#langPrimary language of the user
__cfduidSet up a secure connection
volumeControl_volumeValue Preferred audio volume for video
closedCaptions_languageKey Preferred subtitles for video

Website usage analysis cookies

User consent is not necessary for cookies that do not or hardly affect privacy. These are often cookies which help improve the functionality of the website. Our analytical cookies also fall into this category. They are used by websites to collect visitor statistics, for example. They provide more information on the website’s performance. Analytical cookies barely affect the privacy of users.

www.cbs.nl uses cookies for research and web statistics to analyse how visitors use the website. This information helps to improve the site. For example, by adding more information and increasing user-friendliness.

CBS has taken measures to minimise the traceability of its website visitors. This is achieved by letting Google Analytics remove the final octet (group of eight bits) of each IP address immediately. In order to safeguard user privacy, CBS closely follows the guidelines provided in the PDF document ‘Handleiding privacyvriendelijk instellen van Google Analytics’ (Dutch only) as published by the Dutch Data Protection Authority (AP). From all IP addresses processed by Piwik Pro the final 2 octets (2 groups of eight bits) are immediately removed.

The collected information is used by www.cbs.nl for no other purpose than to improve the website. The table below shows you which cookies are related to web statistics on www.cbs.nl.

Website usage analysis cookies
NameAttribute
_gaUsed to distinguish visitors.
_gatPlaced by Google to limit the number of requests based on doubleclick.
_gitUsed to distinguish visitors.
_pk_idUsed to distinguish visitors.
_pk_sesPages visited on www.cbs.nl by the user during the current session.
stg_externalReferrerURL of the website that referred the visitor to www.cbs.nl.
stg_traffic_source_priorityType of traffic source that explains how the visitor reached the website.
stg_last_interactionDetermines whether the the visitor’s last session is still in progress or if a new session has started.
stg_returning_visitorDetermines if the visitor has already been to www.cbs.nl.
stg_fired__Determines if an event was triggered during the current visitor’s session.
stg_utm_campaignName of the campaign that directed the visitor to www.cbs.nl.
stg_pk_campaignName of the campaign that directed the visitor to www.cbs.nl.

Analytical cookies

CBS conducts user surveys on www.cbs.nl. This is done with Usabilla. Survey scripts determine whether survey questions are displayed to a visitor and which survey questions these are. The script lets the web browser of the visitor check whether this visitor has already participated in a survey recently, or whether they previously indicated they do not wish to cooperate. With the help of a cookie and data in LocalStorage, the answers provided by survey respondents are linked to their website behaviour. This is done on an anonymous basis and does not involve any personal data whatsoever. The following cookies and data in Local Storage are used for the survey.

Analytical cookies
NameAttribute
usblsIs the visitor new or has the visitor visited the website before?

Local Storage

Data in LocalStorage
NameAttribute
ppms_webstorageStores data about the created cookies for webstatistics starting with_pkenstg. This is the same data that was used to create the cookies.
usbl.buttonId.vIs the visitor new, or has the visitor visited the website before?
usbl.0555f33ceda6.c.627bc567d99c
(composition: usbl.buttonId.c.campaignId)
Ensure that visitors are asked to participate in a user survey at a given time. For example: after completion of a task.