Traffic goes down after migration from aws to Microsoft azure cloud service

[DivyaDubey]

After migration of web  application from aws  ec2 instance to Microsoft azure web App service,  we observed that we lost  our 50% traffic. Our site  custom domain is ihealthmantra.com and azure web App has default domain azurewebsites.net  . Azure  WebApp service has drawback that default domain gets in picture after mapping to my custom domain .We have mapped  azure webAPP host name to our custom domain as CNAME record in DNS Table .  Now same site working with two domains i.e ihealthmantra.com as well ass  azurewebsites.net . As we seen this issues we made 301 redirection from azure default domain to our custom domain, Still no change in traffic.Google is now showing external links from azurewebsites.net  to healthmantra.com .

We are totally confused now . We don't know what exactly affected to our search traffic . Please Help us.