eBay allows sellers to place only certain types of links within an item description. Links that are allowed are listed below; sellers should review the specific links policy to ensure any links included in the listing adhere to the policies outlined.
One link to a page that further describes the item being sold in that listing
One link to your email address that opens an email client for potential buyers to ask questions about the item in that listing
Links to photos of the item for sale
Links to your eBay (including your eBay Shop)
Links to your About Me page (in addition to the About Me icon already provided by eBay)
Links that provide credits to third parties
One link to your listing terms and conditions (providing that the most relevant information is within the listing itself and that this page does not include any links off of the eBay website)