| Name | Why |
| PHPSESSID | Keeps you signed in to your customer account. Lasts until the browser is closed. Without it, signing in is not possible. |
| nt_mode | Remembers the selected catalog display mode. Stored in localStorage. |
| nt_brand | Remembers the selected brand. Stored in localStorage. |
| nt_cart | Remembers the cart contents across pages. Stored in localStorage. |
All of the above — technically necessary: without them the account area, cart and filters do not work. Consent for them is not required by law, but you can delete them in your browser settings — the site will keep working; it will just "forget" your preferences.