Send a laptop via eBay with shipping, DHL can see if the buyer has really received the goods

Send a laptop via eBay with shipping, DHL can see if the buyer has really received the goods.

You can't send anything via ebay. You send with DHL.

At DHL, there's a shipment tracking. Anyone with the tracking number can track where the packet is located. Of course, DHL can do that too, if anyone should look it up.

For parcel shipping you have a tracking and can query whether the shipment has been delivered

DHL can only confirm that the package has arrived. DHL can't and does not say anything about the content. You do not know what you packed into the package.

You, the seller and the buyer, can also use the tracking number to see where the package is and when it was delivered.