Global Covenant of Mayors


Last updated on 26 October 2022

This Cookies Policy describes the different types of cookies that may be applied on the website (“Website”), maintained by the Global Covenant of Mayors for Climate & Energy’s (“GCoM”). We may change this Cookie Policy at any time. Please take a look at the “Last updated” legend at the top of this page to see when this Cookie Policy was last revised. Any changes in this Cookie Policy will become effective when we make the revised Cookie Policy available on or through the Websites.
To the extent any personal data is collected through cookies, the Privacy Statement applies and complements this Cookie Policy.


Visiting GCoM’s website implies the collection of personal data by means of cookies or similar technologies.
a. What are cookies?
A cookie is a tiny file (encrypted text files) saved on your device when visiting websites. It allows us to store a small amount of data on your computer, phone or tablet about your visit to the Website. The information stored in a cookie may be used during your next visit, for example to remember your language preference of our Website or your login information, where applicable. It allows websites to function as efficiently and simply as possible. You can change your mind later on, by removing the accepted cookies in your browser. To find out more out more on how to manage and delete cookies, please visit
Cookies also usually have an expiry date. For example, some cookies are deleted automatically when you close your browser (so-called session cookies), while others remain on your computer for a longer period of time, sometimes even until you delete them manually (so-called persistent cookies).

b. What kind of cookies do we store on your device?
There are different types of cookies. Some are mandatory for the proper functioning of a website, others can be refused.
In the tables below, we list the different types of cookies that may can be used on the Website, along with its purposes, types and retention periods:
1. Strictly necessary cookies
2. Statistics cookies
3. Preference cookies
4. Targeting cookies?
Furthermore, cookies can be classified as so-called first-party cookies or third-party cookies.
 First-party cookies are set by us and are directly stored by the Website. These cookies allow us to collect analytics data, remember the language preference or login information, and perform other useful functions to increase the user experience.
 Third-party cookies are cookies from an external domain, different than the domain of the website you are visiting. These cookies are mostly used for advertising and marketing purposes. A third-party cookie is accessible on any website that loads the third-party server’s code.

1. Strictly necessary Cookies – mandatory for the functioning of our website:
They are essential to be able to use all the following features of our website. The website cannot function properly without these cookies
Name Provider Storage duration Purpose
Cookie-lawinfo- checkbox-necessary 1 day Record your consent regarding GCoM’s website
JSESSIONID Until the end of the session Preserves users states across page requests.
rc::a Persistent This cookie is used to distinguish between humans and bots.
rc::c Until the end of the session This cookie is used to distinguish between humans and bots.
viewed_cookie_policy 6 months Used to note whether you have viewed the cookie policy
cli_user_preference 6 months Used to note cookie preferences

2. Statistics cookies
Statistics cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.

Name Provider Storage duration Purpose
_gat Google Analytics Until the end of the session Used to throttle request rate. This cookie allow us to use the Google Analytics service. These cookies are used to collect information about how visitors use our website. We use this information to compile reports and to help us improve the website.
_ga Google Analytics 2 years Used to distinguish users This cookie is installed by Google Analytics. The cookie is used to calculate visitor, session, campaign data and keep track of site usage for the site’s analytics report. The cookie stores information anonymously and assigns a randomly generated number to identify unique visitors.
_gid Google Analytics 1 day This cookie is installed by Google Analytics. The cookie is used to store information of how visitors use a website and helps in creating an analytics report of how the website is doing. The data collected includes the number visitors, the source where they have come from, and the pages visited in an anonymous form.
Events/1/# Until the end of the session Used to monitor web site performance for statistical purposes.
Jserrors/1/# Until the end of the session Preserves users states across page requests.

3. Preference cookies
Preference cookies enable a website to remember information that changes the way the website behaves or looks, like your preferred language or the region that you are in.
Name Provider Storage duration Purpose
Tableau_locale Until the end of the session The cookie determines the preferred language and country-setting of the visitor – This allows the website to show content most relevant to that region and language.
Tableau_public_negotiated_locale Until the end of the session Used in context with the language setting on the website. Facilitates the translation into the preferred language of the visitor.

4. Targeting cookies
We collect and store certain technical information about your visit for use in website management and security purposes. This information includes:
 The Internet domain from which you access our Website (for example, “” if you use a private Internet access account, or “” if you connect from an educational domain);
 The IP address (a unique number for each computer connected to the Internet) from which you access our Website;
 The type of browser (e.g. Firefox, Chrome) used to access our site;
 The operating system (e.g. OS X) used to access our site;
 The date and time you access our site;
 The URLs of the pages you visit; If you visited this website from another Website, the URL of the forwarding site.
This information is used to help us make our Website more useful for you. With this data we learn about the number of visitors to our website and the types of technology our visitors use. Raw data logs are retained for up to one year for security and Website management purposes only.

If you have questions about this Cookies Policy, you may contact us at the below address or by e-mailing to

Global Covenant of Mayors
Boulevard Charlemagne 1, Mezzanine Floor
1000 Brussels

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