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Cookies notice


The European Space Agency (herein the “Agency” or “ESA”) is an intergovernmental organisation established by its Convention opened for signature in Paris on 30 May 1975 having its headquarters located at 24 rue du Général Bertrand, CS 30798, 75345 Paris Cedex 07, France.

Protection of Personal Data is of great importance for ESA, therefore this Cookie Notice aims to ensure lawfulness and transparency by explaining the cookies and similar technologies that we use in the ESA-DG website , what they do, what your choices regarding their use are and how you can contact us.


What is a cookie?

A cookie is a small text file that a website may save on your device, for instance mobile device or computer, upon your visit to the website. Cookies may allow a website to recognise an individual’s device and store some information about the user.


What are the different types of cookies?

A cookie can be classified by its lifespan and the domain to which it belongs. By lifespan, a cookie is either a:

  • session cookie which is erased when the user closes the browser or;
  • persistent cookie which remains on the user’s computer/device for a pre-defined period of time;

As for the domain to which it belongs, there are either:

  • first-party cookies which are set by the web server of the visited page and share the same domain;

third-party cookies stored by a different domain to the visited page’s domain. This can happen when the webpage references a file, such as JavaScript, located outside its domain.


Which cookies do we use?

Strictly Necessary: These cookies are strictly necessary for the website to provide the services that you requested and/or for the solely purpose of the transmission of the services and/or the website. Without these cookies you would not be able to access the services or the website and therefore this category cannot be disabled.

Source First Party or Third Party cookie? Cookie Name Session or Persistent cookie? Type of personal data collected Purpose Expires First party wordpress_sec_[hash]



persistent wordpress authentication WordPress login status Session ends First party cookieconsent_status persistent Cookie consent 12 months


Analytics Cookies: These cookies help us to improve and measure the performance of our website by collecting and reporting information on how you use it. We only place this cookies if you have provided your prior consent.

In this website we use Matomo.

Matomo is an open source web analytics platform, places cookies on your device that help us to improve our website by collecting and reporting information on how you use the website:

  • Information is collected in an anonymised form. Matomo’s random unique visitor ID, enables the distinction between the website user’s first visit and subsequent visits.
  • Moroever, Matomo seeks to: comply with the EU’s General Data Protection Regulation of 27 April 2016 (GDPR); to protect end-user personal data (opt-out mechanisms for users; encrypting analytics data communication; internet protocol (IP) anonymization
  • Matomo generates analytical reports on the basis of the anonymised data. These reports are distributed to ESA, Serco’s contractors, which may be required to analyse, develop and maintain the website.
  • ESA uses Matomo to anonymise data.
Source First Party or Third Party cookie? Cookie Name Session or Persistent cookie? Type of personal data collected Purpose Expires First party _pk_id persistent used to store a few details about the user such as the unique visitor ID 13 months First party _pk_ref persistent used to store the attribution information, the referrer initially used to visit the website 6 months First party _pk_ses, _pk_cvar, _pk_hsr persistent short lived cookies used to temporarily store data for the visit 30 minutes


How do you withdraw your consent and delete the cookies?

Cookies Preferences: You can withdraw your consent for each cookie category (except strictly necessary or essential cookies) at any time by selecting your preferences in the “Cookie Preference”. By using our Cookies Preferences and revoke your consent, the cookies therein described will be deleted.

  • Using Your Browser: All the cookies used on our website can be disabled through your browser. To disable cookies through your browser, follow your browser instructions. Normally within the “Help,” “Tools” or “Edit” menus in your browser. Please note that blocking or deleting cookies may lead to reduced functionality of some features on the website. Therefore, the website may not function optimally without enabled cookies, in particular strictly necessary and essential cookies.

Changes to our Cookies Notice

All future changes we make to our Cookie Notice will be posted on this website.


In case of any question, you can contact ESA DPO, as first point of contact, by sending an email to:


Get in touch