What is set here and what the storefront sets after you click.
This site sets no advertising cookies and runs no third party tracking scripts. There is no analytics pixel following you from page to page.
Ordinary cache entries for the stylesheet, the fonts and the product images, so the second page you open loads faster than the first. Clearing your browser cache removes them.
Pressing a buy button hands you to the storefront, which sets its own cookies, including one recording that you arrived from this site. That cookie is how the commission is attributed. Their cookie policy governs it, and you can refuse or clear it in your browser.
Every current browser lets you block or clear cookies per site. Doing that will not break anything here, because nothing on these pages depends on one.