Short answer
PrivateHealthInsuranceSpain.com does not set any cookies, and does not use analytics, advertising or social-media tracking. Fonts and scripts are served from this site itself, not from third parties, so no other company receives a request when you read a page.
What the server does record
Like any website, the hosting server keeps short-lived technical logs (IP address, the page requested, browser type and time) so that it can deliver the site and protect it from abuse. These logs are not used to profile visitors.
If this changes
If analytics or any other non-essential cookie is ever added, this policy will be updated first and a consent banner will let you accept or refuse it before anything is set, as Spain's LSSI (article 22.2) and the AEPD's guidance require.
Contact
Questions: jon@privatehealthinsurancespain.com.