www in URL

My website "www.crockerwebdesign.com" has been experiencing outages over the last couple of days. I get a DNS time out error. The site will not come up unless I drop the "www" part from the URL.

I have asked the hosting company to check their DNS entries to make sure they are correct and they have assured me they are. It is still happening and I would appreciate a reponse from anyone who might have an answer as to why it is happening and what or who I can contact to fix it.

Could it be that my isp has a problem with their DNS server?

Thanks

RonC

 

 

 

 

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