We use cookies on the TNO website. Cookies are small information files that can be automatically stored on or read off a device (e.g., a PC, tablet, or smartphone) when a user visits a website. This is done through the device’s web browser. These cookies minimally process the visitor’s IP address, the cookie’s ID, and technical information about the device used. This means that TNO uses your personal data when you visit the website.

TNO cookies

TNO only uses first-party cookies. These include functional cookies that the website itself installs and identifies. These cookies are necessary for the website to function. TNO does not have to seek consent for these functional cookies.


The website also uses cookies to:

  • analyse the use of the website and use that information to improve the website (analytical cookies);
  • collect information about our visitors’ browsing behaviour and tailor advertisements to the preferences of website visitors (advertising cookies). All this is for advertising and marketing purposes.

This cookie statement therefore provides detailed information about the cookies, pixels, and tags for which you can grant or withhold consent.

Functional cookies

The placing of technical or functional cookies is necessary for the website to function properly. There are also functional cookies that are optional, in order to view YouTube videos or see our newsletter pop-up.

Analytical cookies

In addition to the data mentioned above, analytical cookies also process the time spent on a particular web page and the order in which the various web pages are visited. TNO uses the analysis tool AB Tasty to optimize website visits.

TNO uses Piwik Pro to measure the experience of visiting our website and we use these results to improve users’ experience of the website. PiwikPro uses privacy-friendly analytics. TNO has concluded a data-processing agreement with PiwikPro to ensure that the processing of personal data by PiwikPro is in line with privacy legislation.

Advertising cookies

TNO only uses advertising cookies for retargeting purposes and conversion tracking on LinkedIn. This means that TNO can retarget you via ads on LinkedIn and measure when you perform an affirmative action on the TNO website, such as filling in a contact form. If you have given consent for these cookies to be placed, you can change these settings at any time.

Social media

Our Social Media buttons at the bottom of every page on the TNO website lead to our Facebook, Twitter, LinkedIn, Instagram, and YouTube social media pages. These are links and do not use cookies.

3rd Party Video

Some pages of the website use content hosted on other sites. This is called embedded content. Examples include YouTube videos. If you have consented to this, YouTube will place a cookie on your computer.

Complete overview of cookies
Name Party Description Category Validity
ASP.NET_SessionId .NET Microsoft Used to identify the user’s session on the server. The session that is used to store data between off-HTTP requests on the server. Functional cookie - required End of the browser session
ppms_privacy_ PiWik Pro To store consent to the use of cookies. Functional cookie - required 1 year
_pk_id. PiWik Pro To store a unique user ID. Analytical cookie - optional 30 minutes
_pk_ses. PiWik Pro To store a unique session ID. Analytical cookie - optional 30 minutes
stg_traffic_source_priority PiWik Pro -tag manager Stores the type of traffic source (e.g., the previous website you visited) from which the visitor came to our site. Analytical cookie - optional 30 minutes
stg_last_interaction PiWik Pro -tag manager Indicates whether the last visitor’s session is still running or whether a new session has been started. Analytical cookie - optional 365 days
stg_returning_visitor PiWik Pro -tag manager Indicates whether you have visited our site before - you are then a returning visitor Analytical cookie - optional 365 days
stg_fired__<conditionID> PiWik Pro -tag manager Indicates whether the tag and trigger combination was activated during your current visitor session. This cookie can be set multiple times with different condition IDs. Analytical cookie - optional To the end of the session
stg_utm_campaign PiWik Pro -tag manager Stores the name of the campaign that led you to our site. Analytical cookie - optional To the end of the session
stg_pk_campaign PiWik Pro -tag manager Stores the name of the campaign that led you to our site. Analytical cookie - optional To the end of the session
stg_externalReferrer PiWik Pro -tag manager Stores the URL of the site that referred you to our site. Analytical cookie - optional To the end of the session
_stg_optout PiWik Pro -tag manager Helps disable all tracking tags on our site. Analytical cookie - optional 365 days
_pk_cvar. PiWik Pro -tag manager Stores a custom variable that is part of the visit range. Analytical cookie - optional 30 minutes
AnalyticsSyncHistory LinkedIn.com Stores data on the time that a synchronisation took place with the cookie lms_analytics. Analytical cookie - optional 30 days
bcookie LinkedIn.com Cookie with browser ID that uniquely identifies devices to access LinkedIn to detect misuse on the platform. Analytical cookie - optional 1 year
bscookie LinkedIn.com Used to remember that a logged-in user is verified by two-part verification and has previously been logged in. Advertising cookie - optional 1 year
lidc LinkedIn.com Used to facilitate data centre selection. Advertising cookie - optional 24 hours
li_fat_id LinkedIn.com Indirect ID for LinkedIn users to track conversions and for retargeting and analytics. Advertising cookie - optional 30 days
li_gc LinkedIn.com Used to store visitors’ consent to the use of cookies for non-essential purposes. Advertising cookie - optional 6 months
li_mc LinkedIn.com Used as a temporary cache to avoid having to look in the database for consent from a LinkedIn user to use non-essential cookies and used to have information about your possible consent and to enforce that consent. Advertising cookie - optional 6 months
ln_or LinkedIn.com Used to determine whether analysis by Oribi can be performed on a specific domain. Advertising cookie - optional 1 day
lms_ads LinkedIn.com Used to identify LinkedIn users for ads. Advertising cookie - optional 30 days
lms_analytics LinkedIn.com Used to identify LinkedIn users outside LinkedIn for analysis. Advertising cookie - optional 30 days
UserMatchHistory LinkedIn.com Synchronisation of IDs from LinkedIn ads. Advertising cookie - optional 30 days
mp_2_blocked Spotler Functional mailplus cookie so that the popup will no longer be displayed for as long as this cookie exists. Functional cookie - optional To the end of the session
mp_2_pageviews Spotler Functional mailplus cookie used by the mailplus service to track the number of page views on which the popup is displayed. Functional cookie - optionalel To the end of the session
ABTasty AB Tasty Registers visits to web pages for web usage analysis tool. Analytical cookie - optional 13 months
ABTastySession AB Tasty Registers visits to web pages for web usage analysis tool. Analytical cookie - optional To the end of the session

If you have given consent for these cookies to be placed, you can change these settings at any time.