To get more order, Include your portfolio in your Gig description and then share the Gig with your buyers in buyer’s request.
The following URLs may be used in your profile or Gig description:
(I have got the URLs from fiverr customar suport)
Note: If you use a URL, which is not in the above list, it will be removed from your profile. If used in your Gig, it will be denied. Repetitive violations may cause an account to be restricted.