DNS servers - DNS analysis CZ 2009/09

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Number Of DNS Servers Per Domain (from Parent Server)
0
 
421201
 
146765
 
16620
 
464
 
85
 
65
 
68
 
23
 
0
 
1 2 3 4 5 6 7 8 9 10

DNS servery of domains - by DNS server name (TOP 30)
DNS serverIP addressdomains%
ns.forpsi.net81.2.194.1309137915.58
ns.forpsi.cz81.2.209.1859034715.40
ns.forpsi.it62.149.230.878449414.40
alfa.ns.active24.cz81.95.96.26349910.82
beta.ns.active24.cz81.31.37.2136349810.82
ns2.ignum.cz213.235.133.138472678.06
ns1.ignum.com217.31.49.46462367.88
ns1.regzone.cz217.198.113.10263204.49
ns1.regzone.info77.93.209.246263204.49
ns2.pipni.cz81.0.235.34152492.60
ns.pipni.cz193.86.238.2152482.60
ns2.web4u.cz81.31.32.16152422.60
ns.web4u.cz81.91.87.50152342.60
ns1.thinline.cz88.146.119.40101751.73
ns2.thinline.cz82.208.47.2101751.73
ns.forpsi.us62.149.230.8779211.35
ns.dns4.cz81.95.96.271541.22
ns.dns4.net81.31.37.21371531.22
ns2.banan.cz217.73.17.14068781.17
ns.banan.cz77.78.110.13468771.17
ns3.banan.it77.93.211.23266051.13
ns1.uplink.cz77.78.126.1757630.98
ns2.uplink.cz62.109.141.13757620.98
ns3.uplink.cz206.225.16.15556820.97
ns.forpsi.cn53430.91
ns.skok.cz217.11.249.21751750.88
ns2.skok.cz89.185.253.351750.88
ns2.savana.cz81.0.237.22551390.88
ns1.savana.cz81.0.237.22751360.88
sns.vol.cz195.250.128.251280.87
DNS servers of domains by DNS IP address (TOP 30)
IP addressreverse recorddomains%
62.149.230.87ns.forpsi.it9293715.84
81.2.194.130ns.forpsi.net9210815.70
81.2.209.185ns.forpsi.cz9085815.49
81.95.96.2alfa.ns.active24.cz7519712.82
81.31.37.213beta.ns.active24.cz7517712.81
213.235.133.138ns2.ignum.cz490108.35
217.31.49.46ns1.ignum.com479458.17
77.93.209.246ns1.regzone.info263204.49
217.198.113.10ns1.regzone.cz263204.49
81.0.235.34www.carrolatuning.us156392.67
193.86.238.2ns.pipni.cz156392.67
81.31.32.16ns2.web4u.cz154322.63
81.91.87.50ns.web4u.cz154242.63
195.47.67.217sns.nethost.sk104391.78
77.78.126.17station07.station.cz103401.76
62.109.141.137?103271.76
82.208.47.2ns2.thinline.cz101751.73
88.146.119.40kryton.thinline.cz101751.73
206.225.16.155tetris.uplink.cz98061.67
88.208.118.146ns1.gigant.cz79441.35
88.208.118.147ns2.gigant.cz79441.35
88.208.118.40green.gigant.cz70821.21
88.86.120.83ns.miton.cz70821.21
87.236.194.62ns.mitoncz.com70821.21
?70751.21
81.0.235.1dns.nethost.cz69761.19
77.78.110.134tomahawk.tophost.cz69001.18
217.73.17.140f08.banan.cz69001.18
77.93.211.232v02.banan.cz66051.13
81.0.237.225ns2.savana.cz51980.89
Number of DNS servers names per IP address
IP addressreverse recorddomains
81.30.228.217?128
82.208.50.125assigned-82-208-50-125.casablanca.cz128
82.99.190.2mail.cp2000.cz62
82.99.190.4smail.cp2000.cz61
62.116.163.100ns10.ns14.de47
62.116.129.129ns9.ns14.de38
89.185.235.42krakonos.animato.cz36
195.47.67.217sns.nethost.sk36
81.28.236.2ns2.variomedia.de27
81.28.224.2ns1.variomedia.de27
81.0.235.1dns.nethost.cz26
213.235.133.138ns2.ignum.cz22
217.31.49.46ns1.ignum.com20
213.160.90.82ns2.dns.regsol.net18
212.12.114.14ns1.dns.regsol.net17
195.250.150.138firma.aspi.cz16
195.122.196.231aspi-sh1.customer.vol.cz16
81.30.228.220?15
82.208.50.124assigned-82-208-50-124.casablanca.cz15
213.160.64.64ns.routing.net14
194.0.182.1?14
213.160.65.64ns8.routing.net14
81.2.209.7070.209.forpsi.net14
194.50.187.134?14
77.78.85.161mail.genetica.cz14
193.227.117.124?13
193.86.238.2ns.pipni.cz12
217.195.32.10?12
81.3.2.135ns2.s-dns.de12
77.104.247.188188.247.104.77.coprosys.cz11
DNS servers response
resultnumber%
All name servers for this domain name respond to DNS queries54458792.82
can't contact any of name servers157932.69
some of name servers do not respond190413.25
none of DNS servers can't be resolved to IP15510.26
some names of DNS servers can't be resolved to IP57230.98
zone serial numbers
resultnumber%
All name servers return the same serial number in SOA record56558996.4
DNS servers return 2 different serial numbers29970.51
DNS servers return 3 different serial numbers7650.13
DNS servers return 4 different serial numbers00
DNS servers return 5 or more different serial numbers00
at least one secondary name server returns higher serial number than primary servery8980.15
authoritativity of name servers for the domain
resultnumber%
All name servers are authoritative for this domain name56300795.96
none of name servers is authoritative34610.59
some name servers are not authoritative63441.08
attendance of required glue records at parent server
resultnumber%
There are all required glue records on parent server56928997.03
some name servers don't have required glue record at parent server620.01
glue records and A records in zone matching
resultnumber%
Glue records match with A records in the zone56530296.35
IP from glue record at parent server does not match for some name server40490.69
attendance of NS records in the zone
resultnumber%
Zone of the domain name contains NS records56890296.97
the zone does not contain any NS record4260.07
the zone contain at least one NS record with IP address230
NS records and authoritative name servers matching
resultnumber%
NS records from the zone match NS records from parent server51219087.3
DNS servers list mismatch, there are more NS records in the zone220833.76
DNS servers list mismatch, there are less NS records in the zone125632.14
DNS servers list mismatch, number is the same, but they differ220893.76
unknown or not tested4260.07
recursive queries
resultnumber%
None of name servers offer recursive services48689782.99
all nameservers provide recursive services376456.42
some nameservers provide recursive services448097.64
public zone transfer (AXFR)
resultnumber%
None of name servers offer zone transfer (AXFR) for this domain name36917762.92
all nameservers allow to perform AXFR14903225.4
some nameservers allow to perform AXFR511428.72
name servers on public IP
resultnumber%
All name servers are on public IP addresses56930897.04
all name servers have non-public IP00
some name servers have non-public IP430.01
recommended number of name servers
resultnumber%
The domain has recommended 2-7 name servers56926097.03
domain has only one authoritative name server00
domain has more than 7 name servers910.02
TTL values in NS records on parent server
resultnumber%
TTL values of NS records at parent server matches56935197.04
TTL values for NS records at parent server are not identical00
TTL values in NS records in the zone
resultnumber%
TTL values of NS records in the zone matches56830496.87
TTL values for NS records in the zone are not identical6210.11
unknown or not tested4260.07




(c) Petr Šťastný 2010, e-mail:








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DNS analysis .CZ 09/2009
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