It's not 1and1's fault. You've told the world that your Public DNS records are hosted on webhostingpad.com name servers and at least one of those servers is incorrectly configured.
Note the warning about your DNS servers, as shown on Checkdns.net:
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"NS list mismatch: registration authority reports that domain is hosted on the following servers: 'ns1.webhostingpad.com; ns2.webhostingpad.com', but DNS server ns1.webhostingpad.com reports domain to be hosted on 'ns57.1and1.com; ns58.1and1.com'.
Please make sure that you configure the same DNS servers in registrar database and on your DNS"
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When somebody requests DNS information for advirtizit.com, the server responsible for your domain says the first nameserver is at ns1.webhostingpad.com.
But ns1.webhostingpad.com, tells the requester that your nameservers include ns57.1and1.com.
Basically, you are referring requesters to two different sets of nameservers, with different content. One of the webhostingpad name servers probably points to your correct web server, while the other nameserver tells requesters that the nameserver is a 1and1.com nameserver that points to a 1and1 parked page.
Modify the records on ns1.webhostinpad.com and ns2.webhostingpad.com to point directly to your web site and eliminate any reference to the 1and1 nameservers.
Compare your results to a set of properly configured DNS records:
CheckDNS.net check of DNS records for ZoneEdit.com, a supplier of DNS servers.