Let's make a common example:
www.example.com
is the main website of a company, then they have
blog.example.com
that is the company's blog.
It's important to note that the same organization is behind both websites and is the unique owner of the first+second level domain name example.com
.
The "blog" website could have been incorporated into the main website:
www.example.com/blog/
But this time this is not the case. There are many (valid) reasons to split a site via third-level domain names, as in the example above where the blog site is separated from the main site.
Now the question is: can the two website share the same cookie-consent-banner and the same cookie policy extended disclosure?
And more important (in order to avoid annoying the user): is it licit that when the user give consent on one web site it implicitly give consent to the other site?
Taking the initial example the user go to www.example.com
. The banner is displayed and the user give consent accepting the cookie policy.
Then the user see the link "Visit our blog", navigates to the website's blog landing to blog.example.com
.
Is it possibile to avoid displaying a banner again?
Provided of course that both the banner and the extended cookie policy are written in the correct way.