I created a new subdomain:
Sometimes, the blog is accessible without any problems, but other times it's not, just like now at this moment (14-Nov-2013 12:57 PM Lebanon Local Time).
Yesterday at night it was working. I've been having this problem for days.
If I ping the subdomain, under Windows:
Ping request could not be find host blog.example.com. Please check the name and try again.
If I try
Unable to resolve target system name blog.example.com.
nslookup I don't get any records, with my humble knowledge, it seems as DNS problem. But why would it work sometimes? and not other times?
Note that the response of the previous commands are instantaneous (in case you need to check some packets or something).
I'm also using the Global Google DNS (