I have the following 2 websites on the same hosting account and using the same DNS settings:
http://www.supadupawebdesign.co.uk (not working)
http://www.jukeboxstar.com (working)
Recently my hosting's domain name expired, but has now been renewed. I expected downtime because of this, but now that the host has renewed, I can't understand why one works and one doesn't. I tried doing some DNS checking tools but i'm still none the wiser as to why only one of them works.
Furthermore, they both work from my home, but not from anywhere else and all other tools I check online say it's down.
What is wrong with the supadupa domain?
The problem seems to be the fact that the server that you have pointed your domain name to does not respond properly. That most likely mean that the DNS zone for this domain name does not exist or is broken.
When you perform a DNS lookup, what you get is:
Searching for supadupawebdesign.co.uk. A record at C.ROOT-SERVERS.NET. [192.33.4.12] ...took 1 ms Searching for supadupawebdesign.co.uk. A record at dns4.nic.uk. [43.230.48.1] ...took 14 ms Searching for cl2.owphosting.com. A record at F.ROOT-SERVERS.NET. [192.5.5.241] ...took 1 ms Searching for cl2.owphosting.com. A record at e.gtld-servers.net. [192.12.94.30] ...took 1 ms Searching for cl2.owphosting.com. A record at dns3.name-services.com. [162.88.61.39] ...took 3 ms Searching for supadupawebdesign.co.uk. A record at cl2.owphosting.com. [69.64.147.37] Query timed out (interrupted after 2,000 milliseconds) Retrying... Searching for cl1.owphosting.com. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 24 ms Searching for cl1.owphosting.com. A record at a.gtld-servers.net. [192.5.6.30] ...took 14 ms Searching for cl1.owphosting.com. A record at dns2.name-services.com. [162.88.60.23] ...took 0 ms Searching for supadupawebdesign.co.uk. A record at cl1.owphosting.com. [69.64.147.37] Query timed out (interrupted after 2,003 milliseconds) Retrying... Searching for supadupawebdesign.co.uk. A record at cl2.owphosting.com. [69.64.147.37] Query timed out (interrupted after 2,002 milliseconds) Retrying... Searching for supadupawebdesign.co.uk. A record at cl1.owphosting.com. [69.64.147.37]
Query timed out (interrupted after 2,003 milliseconds) None of the nameservers responded correctly.
Whereas the same server responds correctly for the other domain name. That is why since I can see that you are using a cPanel server, you should make sure that this domain name is properly added to your account. If it is an addon domain, try to remove it and add it again. If there is some corrupted record in the DNS configuration you will either fix it this way, or if it does not allow you to add the domain again, you should contact the host so that they can check their DNS zone for this domain.