Cookie management

There has been a lot of debate lately regarding cookie management. Some notions first:

  • First party cookies are cookies which domain match the domain name of the website they are used on. For example, when visiting www.acme-corp.com website, a first party cookie would aim at the domain *.acme-corp.com
  • Third party cookies are cookies which domain match a domain name which is not the one of the website they are used on. For example when visiting www.acme-corp.com website, a third party cookie would aim a the domain *.advertising.com and when visiting www.other-company.com a Javascript from advertising.com might also make use of a *.advertising.com cookie.

The cookies we are using with Hermes are first party cookies. The Javascript that is executed is indeed hosted at hermes.allo-media.net but it will create a cookie matching the domain *.acme-corp.com. This is possible because the Javascript is loaded and executed by the document hosted at www.acme-corp.com.

For a same user, we would create another dedicated cookie if the user was to also visit www.other-company.com.

Privacy protection

Allo-media provides a "cohort mode", which let's you run the script without cookies. Some features are not available in this mode, but you'll be able to get basic tracking of your calls.

Cohort mode