Facebook Object Debugger - Could not resolve the hostname into a valid IP address

Question

There is a problem with how Facebook scrapes my page for meta data.

When I use the Facebook object debugger I get the following error:

Answer 1

After digging for 3 days came to the conclusion that name servers were configured incorrectly.

I am using Bigrock for the domain and GoDaddy for hosting, by mistake, I configured actual hosting provider hostname in "Name Server 3" and "Name Server 4". But Facebook looks for the content in first server "bigrocks-1.com"(wrong server) server but does not find any hosting and throughs 'Could not resolve the hostname into a valid IP address'.

So do remember to put hosting provider address on the first name server

Hope it may help you :)