Cookie Policy

for the website

Overview of Cookies

Definition of cookies

A cookie is a small text file placed on your terminal (computer, tablet, smartphone) when you visit a website such as our Site.

I. Cookies necessary for the functioning of the Site

These cookies are necessary for the proper functioning of the Site and for your navigation. They allow you to access the main features of the Site. For example, the connection to any private space on the Site as a customer or researcher, in order to ensure your identification on all pages of the Site and to ensure optimal navigation via your account.

In accordance with the applicable laws and regulations and the recommendations of the CNIL, these Cookies are exempt from the prior collection of your consent. In order to ensure the proper functioning of the Site, these cookies can not be disabled.

Hack4Values uses the following Cookies on its Website:

  • The Cookie “__cfduid” affixed by our provider Cloudflare, kept for 1 year, in order to identify users sharing the same IP address and apply specific security settings to each user.
  • The ” wp-wpml_current_language ” cookie : stores the user’s preferred language

II. Third party cookies for audience measurement

These cookies are used to evaluate the use of the Site, by collecting information on your navigation. This information is collected in order to carry out measurements of audience, of statistics, with an aim of improving the quality of the services provided by the Site and to offer you a better user experience.


Matomo is a fully GDPR compliant analytics solution, approved by the CNIL. We use Matomo self-hosted on our own servers, meaning no one can access its data except us. The tool has been configured according to this Matomo configuration guide which exempts it from consent collection, in compliance with the rules of the French CNIL

We do not collect any personal data, but if you wish to opt-out of Matomo tracking, you can do so below.

III. Advertising Cookies

Hack4Values doesn’t use any advertising cookies.

IV. Social Network Cookies

Hack4Values doesn’t use any social network cookies.

Types of Cookies and purposes

The table below lists the different types of non-functional cookies used by Hack4Values and the purposes of these cookies.

MatomoNoneUsed to store a few details about the user such as the unique visitor ID.13 months
MatomoNoneUsed to store the attribution information, the referrer initially used to visit the website.6 months
_pk_ses, _pk_cvar, _pk_hsr
MatomoNoneShort lived cookies used to temporarily store data for the visit.30 minutes
MatomoNoneIs created and should be then directly deleted (used to check whether the visitor’s browser supports cookies)Instant
mtm_consent (or mtm_consent_removed)MatomoNoneAre created to remember that consent was given (or removed) by the user.12 months
MatomoNone30 years
MatomoNoneIt is important to note that it doesn’t contain any data used to identify visitors and is considered an « Essential » cookie.14 days

Contact us

If you need more information on cookies, feel free to reach us at the following email address: [email protected]