Hello @Pathan Mohd
Thank you for posting this concern on this community space.
I have read your case scenario description and I wonder if you have the website in question is the next one https://www.loopia.com/
Also, I understood that if you change the DNS settings on your Server to DNS IP 8.8.8.8, it works fine.
I would like to know if you have tried to do nslookup to that website in order to get details about your Internal DNS server and review the final output.
Moreover, you can hardcode this entry on your local host cache file and try it again in order to see if in that way starts working properly and so on...
Finally, I want to ask where this server is hosted if it is on Azure or on your on-premises network.
Please check the steps given on it :)
Looking forward to your feedback,
Cheers,
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.