Members are permitted to include one link to a page that further describes the item being sold in that listing. The primary intent of the link must be to further describe the item and the link must conform to eBay policy.
Violations of this policy may result in a range of actions, including:
Limits on account privileges
Forfeit of eBay fees on cancelled listings
Loss of PowerSeller status
A web page that further describes an antique tea kettle may not contain other items not listed on eBay. However, that page may contain links to pages which do contain items listed on eBay
When linking to a Web page that further describes the item, that page may not contain links to other pages that offer items for sale outside of eBay.
Why does eBay have this policy?
This policy allows sellers to provide more information about the item for sale outside of eBay without encouraging the buyer to purchase outside of eBay. This policy also allows buyers to learn more about the item without completing the transaction outside of eBay. Outside of eBay transaction may be unsafe and are against eBay policy.