DNS servers - DNS analysis SK 2009/09

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Number Of DNS Servers Per Domain (from Parent Server)
4012
 
113478
 
41495
 
27326
 
0
 
0
 
0
 
0
 
0
 
0
 
1 2 3 4 5 6 7 8 9 10

DNS servery of domains - by DNS server name (TOP 30)
DNS serverIP addressdomains%
sns.domains.sk195.47.67.2181875010.05
dns.domains.sk82.208.46.2001874910.05
ns1.nameserver.sk212.89.225.134144977.77
ns2.nameserver.sk217.67.30.16144837.76
ns1.dnsbackup.net212.89.225.164143957.71
ns2.dnsbackup.net86.110.226.47143617.70
ns.exohosting.sk82.119.226.11783724.49
ns1.exohosting.sk92.240.234.7383664.48
ns3.exohosting.sk93.184.71.6681874.39
ns2.telecom.sk195.146.132.5975954.07
alfa.ns.active24.cz81.95.96.274674.00
beta.ns.active24.cz81.31.37.21374674.00
ns.telecom.sk195.146.128.6074153.97
ns0.atlantis.sk217.67.18.2465443.51
ns1.atlantis.sk92.240.247.365423.51
ns1.websupport.sk82.119.226.3460573.25
ns2.websupport.sk92.240.234.3760553.24
ns3.websupport.sk82.119.226.3657533.08
ns.forpsi.net81.2.194.13057233.07
ns.forpsi.cz81.2.209.18556523.03
ns2.webglobe.sk217.67.22.8645422.43
ns.webglobe.sk212.89.225.13944832.40
ns3.webglobe.sk92.240.246.13544562.39
ns1.regzone.info77.93.209.24641302.21
ns1.regzone.cz217.198.113.1041272.21
ns.forpsi.us62.149.230.8738872.08
ns.wbsk.sk212.5.219.6735451.90
ns1.wbsk.sk212.5.219.7235191.89
ns2.wbsk.sk217.67.22.5234701.86
ns2.nic.sk217.73.17.1634151.83
DNS servers of domains by DNS IP address (TOP 30)
IP addressreverse recorddomains%
195.47.67.218sns.domains.sk1877610.06
82.208.46.200dns.domains.sk1877510.06
212.89.225.134mailhub4.mx-hub.net147247.89
217.67.30.16gw1.nameserver.sk147107.88
212.89.225.164mailhub6.mx-hub.net143957.71
86.110.226.47mailhub3.mx-hub.net143617.70
82.119.226.117www.exohosting.sk86744.65
92.240.234.73relay3.dnsserver.eu86544.64
93.184.71.66relay3.dnsserver.eu83284.46
81.95.96.2alfa.ns.active24.cz78074.18
81.31.37.213beta.ns.active24.cz78024.18
195.146.132.59ns2.telecom.sk75954.07
195.146.128.60ns.telecom.sk74163.97
92.240.247.3ns1.atlantis.sk65513.51
217.67.18.24ns0.atlantis.sk65473.51
81.2.194.130ns.forpsi.net64093.43
82.119.226.34scarface.websupport.sk62453.35
92.240.234.37wrk.websupport.sk62273.34
62.149.230.87ns.forpsi.us59043.16
82.119.226.36thor.websupport.sk58873.15
81.2.209.185ns.forpsi.cz58233.12
217.67.22.86ariel.webglobe.sk57313.07
212.89.225.139ariane.webglobe.sk56793.04
?52442.81
92.240.246.135mxbackup1.webglobe.sk44562.39
77.93.209.246ns1.regzone.info41302.21
217.198.113.10ns1.regzone.cz41272.21
212.5.219.67web4.slovenska.sk35451.90
212.5.219.72web7.slovenska.sk35191.89
217.67.22.52bravo.slovenska.sk34701.86
Number of DNS servers names per IP address
IP addressreverse recorddomains
217.67.16.10ns3.dialtelecom.sk179
217.67.16.11ns4.dialtelecom.sk168
93.184.70.253www.ugssro.com118
62.152.230.26link.netsystem.sk53
217.11.251.36it-media.cz46
195.47.67.217sns.nethost.sk28
195.80.167.114ns.uvtip.sk28
82.119.228.4mx.ditec.sk27
62.116.163.100ns10.ns14.de26
62.116.129.129ns9.ns14.de23
62.168.116.73brloh.bikemagazin.sk22
195.168.11.23a3.ba-posam.sh.cust.gts.sk22
195.3.168.120ns.datax.sk21
81.0.235.1dns.nethost.cz19
62.197.208.36rejk-36.rejk-net.sk18
78.47.30.26server.emnet.sk18
193.58.194.66ns.archetyp.sk17
213.215.83.1ns1.cora.sk17
86.110.226.126activenet.sk16
81.2.226.232232.226.forpsi.net14
87.106.12.211hafinko.com14
92.240.237.4242.237.240.92.in-addr.arpa.lightstorm.sk14
82.119.226.117www.exohosting.sk13
217.118.98.130jumbo.kredit.sk13
82.119.226.34scarface.websupport.sk12
81.89.48.4181.89.48.41.vnet.sk12
212.55.255.54bellatrix.to.adsl.slovanet.sk12
62.152.230.2?11
81.2.226.218218.226.forpsi.net11
195.28.90.82mail.unifin.sk11
DNS servers response
resultnumber%
All name servers for this domain name respond to DNS queries16736089.68
can't contact any of name servers14460.77
some of name servers do not respond128146.87
none of DNS servers can't be resolved to IP3330.18
some names of DNS servers can't be resolved to IP42982.3
zone serial numbers
resultnumber%
All name servers return the same serial number in SOA record18359398.38
DNS servers return 2 different serial numbers8490.45
DNS servers return 3 different serial numbers300.02
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 servery3530.19
authoritativity of name servers for the domain
resultnumber%
All name servers are authoritative for this domain name16507188.46
none of name servers is authoritative103795.56
some name servers are not authoritative90224.83
attendance of required glue records at parent server
resultnumber%
There are all required glue records on parent server17409393.29
some name servers don't have required glue record at parent server00
glue records and A records in zone matching
resultnumber%
Glue records match with A records in the zone17036991.3
IP from glue record at parent server does not match for some name server37242
attendance of NS records in the zone
resultnumber%
Zone of the domain name contains NS records17392293.2
the zone does not contain any NS record940.05
the zone contain at least one NS record with IP address770.04
NS records and authoritative name servers matching
resultnumber%
NS records from the zone match NS records from parent server14604578.26
DNS servers list mismatch, there are more NS records in the zone76094.08
DNS servers list mismatch, there are less NS records in the zone113846.1
DNS servers list mismatch, number is the same, but they differ89614.8
unknown or not tested940.05
recursive queries
resultnumber%
None of name servers offer recursive services14501577.71
all nameservers provide recursive services113716.09
some nameservers provide recursive services177079.49
public zone transfer (AXFR)
resultnumber%
None of name servers offer zone transfer (AXFR) for this domain name14068375.39
all nameservers allow to perform AXFR170899.16
some nameservers allow to perform AXFR163218.75
name servers on public IP
resultnumber%
All name servers are on public IP addresses17409093.29
all name servers have non-public IP00
some name servers have non-public IP30
recommended number of name servers
resultnumber%
The domain has recommended 2-7 name servers17093591.6
domain has only one authoritative name server31581.69
domain has more than 7 name servers00
TTL values in NS records on parent server
resultnumber%
TTL values of NS records at parent server matches17409393.29
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 matches17373893.1
TTL values for NS records in the zone are not identical2610.14
unknown or not tested940.05




(c) Petr Šťastný 2010, e-mail:








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