Not able to display image with twitter summary card


I have used summary cards for showing image,title,description and url. My html page is working properly in twitter card validator but showing only link in Twitter. The url is:-

I don’t know why it’s not working also tried with summary large image cards and with player cards for audio and video. But always only link displays nothing else

How do I make a vanity URL display in a tweet?

This will not work unless you have a fully-qualified DNS address for your link. We can’t present cards for dotted IP URLs.