Starting zone checks for sm-master.de
Checking zone name
Resolving name-server address-> ns53.web.de. 3600 IN A 217.160.80.165Checking existence of zone-> sm-master.de. 86400 IN SOA ns53.web.de. hostmaster.web.de. ( 2008061003 ; Serial 28800 ; Refresh 7200 ; Retry 604800 ; Expire 86400 ) ; Minimum TTLChecking NS records-> sm-master.de. 86400 IN NS ns53.web.de. -> sm-master.de. 86400 IN NS ns54.web.de.Checking nameserver authority and synchronization-> ns53.web.de. 3600 IN A 217.160.80.165### Error: Unable to resolve 165.80.160.217.in-addr.arpa.: SERVFAIL
### Error: ns53.web.de (217.160.80.165) has no reverse record [see RFC1912:2.1 for details]
Probing name server ns53.web.de (217.160.80.165)-> sm-master.de. 86400 IN SOA ns53.web.de. hostmaster.web.de. ( 2008061003 ; Serial 28800 ; Refresh 7200 ; Retry 604800 ; Expire 86400 ) ; Minimum TTL -> sm-master.de. 86400 IN NS ns53.web.de. -> sm-master.de. 86400 IN NS ns54.web.de.### Error: Unable to resolve ns54.web.de: SERVFAIL
### Error: Nameserver ns54.web.de doesn't have any valid A records
Decided to use ns53.web.de (217.160.80.165) for zone check
Checking whether ns53.web.de knows an A record for its own name-> ns53.web.de. 3600 IN A 217.160.80.165Checking whether ns53.web.de is able to reverse-map its own IP address
Checking connectivity with other nameservers
### Error: Unable to resolve www.ucw.cz: SERVFAIL
### Warning: ns53.web.de is unable to resolve www.ucw.cz (maybe it's non-recursive)
### Error: Unable to resolve atrey.karlin.mff.cuni.cz: SERVFAIL
### Warning: ns53.web.de is unable to resolve atrey.karlin.mff.cuni.cz (maybe it's non-recursive)-> www.google.com. 10800 IN A 87.106.204.102Checking mapping of localhost
### Error: Unable to resolve localhost: SERVFAIL
### Warning: ns53.web.de is unable to resolve localhost [see RFC1912:4.1 for details]
### Error: Unable to resolve 1.0.0.127.in-addr.arpa: SERVFAIL
### Warning: Reverse mapping of 127.0.0.1 at ns53.web.de doesn't work [see RFC1912:4.1 for details]
Fetching zone data for sm-master.de
### Error: Zone transfer failed
### Fatal error: No name server available for checking