rosmi.org.uk DNS Report

Health Score: 68%

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Checked: 1 month before

Parent

NS records at parent servers

ns1.webdomains.club
ns2.webdomains.club
ns3.webdomains.club
ns4.webdomains.club
[These were obtained from dns1.nic.uk.]

Glue at parent nameservers 0/7

WARNING The parent servers are not providing glue for all your nameservers. This means that they are supplying the NS records (host.example.com), but not supplying the A records. That may cause some extra milliseconds in DNS. This will usually occur if your DNS servers are not in the same TLD as your domain

NS

Mismatched glue 7/7

Skip glue checking. Make sure the nameservers domain is good standing Check webdomains.club

Nameservers A records 0/7

Some servers does not provide A records for nameservers.
missing A record(s) for (webdomainsclub.venus.orderbox-dns.com,webdomainsclub.earth.orderbox-dns.com,webdomainsclub.mercury.orderbox-dns.com,webdomainsclub.mars.orderbox-dns.com) at nameserver 162.251.82.122
missing A record(s) for (webdomainsclub.mercury.orderbox-dns.com,webdomainsclub.mars.orderbox-dns.com,webdomainsclub.earth.orderbox-dns.com,webdomainsclub.venus.orderbox-dns.com) at nameserver 162.251.82.121
missing A record(s) for (webdomainsclub.venus.orderbox-dns.com,webdomainsclub.earth.orderbox-dns.com,webdomainsclub.mercury.orderbox-dns.com,webdomainsclub.mars.orderbox-dns.com) at nameserver 162.251.82.247
missing A record(s) for (webdomainsclub.venus.orderbox-dns.com,webdomainsclub.mercury.orderbox-dns.com,webdomainsclub.earth.orderbox-dns.com,webdomainsclub.mars.orderbox-dns.com) at nameserver 162.251.82.124

Nameservers report identical NS records 7/7

SUCCESS The NS records at all your nameservers are identical.

Nameservers respond 10/10

SUCCESS All of your nameservers listed at the parent nameservers responded.

Nameserver name validity 7/7

SUCCESS All of the NS records that your nameservers report are valid (no IPs or partial domain names).

Number of nameservers 5/5

SUCCESS You have 4 nameservers. You must have at least 2 nameservers (RFC2182 section 5 recommends at least 3 nameservers), and preferably no more than 7.

Lame nameservers 7/7

SUCCESS All the nameservers listed at the parent servers answer authoritatively for your domain.

Missing (stealth) nameservers 0/7

DANGER There are nameservers not listed at the parent servers:
webdomainsclub.venus.orderbox-dns.com.
webdomainsclub.earth.orderbox-dns.com.
webdomainsclub.mercury.orderbox-dns.com.
webdomainsclub.mars.orderbox-dns.com.

Root missing nameservers 0/7

DANGER There are nameservers not listed at your nameservers:
ns1.webdomains.club.
ns2.webdomains.club.
ns3.webdomains.club.
ns4.webdomains.club.

Nameservers on separate class C's 7/7

SUCCESS Nameservers are in a different networks.

public IPs 7/7

SUCCESS All of your NS records appear to use public IPs.

SOA

SOA record

SOA record is:
Hostmaster email
andrey.abvitconsulting.co.uk
Serial
2018071022
Refresh
7200
Retry
7200
Expire
172800
TTL
7200

Serial agreement 7/7

SUCCESS All your nameservers agree that your SOA serial number is 2018071022 That means that all your nameservers are using the same data.

SOA MNAME 0/3

DANGER SOA (Start of Authority) record states that your master (primary) name server is: webdomainsclub.mercury.orderbox-dns.com, but that server is not listed at the parent servers.

Serial value 1/1

SUCCESS SOA serial number is: 2018071022 This appears to be in the recommended format of YYYYMMDDnn, where 'nn' is the revision. This number must be incremented every time you make a DNS change.

Refresh value 1/1

SUCCESS SOA Retry interval is : 7200 seconds. This seems OK. (Values about 3600-7200 seconds is good if not using DNS NOTIFY; RFC1912 2.2 recommends a value between 1200 to 43200 seconds (20 minutes to 12 hours)). This value determines how often secondary/slave nameservers check with the master for updates.

Retry value 1/1

SUCCESS SOA Retry interval is : 7200 seconds. This seems OK. (Values about 120-7200 seconds is good). The retry value is the amount of time your secondary/slave nameservers will wait to contact the master nameserver again if the last attempt failed.

Expire value 0/1

WARNING SOA Expire time is : 172800 seconds. This seems too small. (Values 604800 to 2419200 seconds (1-4 weeks) is good). RFC1912 suggests 2-4 weeks. This is how long a secondary/slave nameserver will wait before considering its DNS data stale if it can't reach the primary nameserver.

TTL value 1/1

SUCCESS SOA Expire time is : 7200 seconds. This seems OK. (about 300 to 86400 seconds or 5 min - 24 hours is good). RFC2308 suggests a value of 1-3 hours. This value used to determine the default (technically, minimum) TTL (time-to-live) for DNS entries, but now is used for negative caching.

Info

DNS trace

Trace to rosmi.org.uk
lookup rosmi.org.uk at A.ROOT-SERVERS.NET(198.41.0.4) 13 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to dns1.nic.uk(213.248.216.1)
lookup rosmi.org.uk at dns1.nic.uk(213.248.216.1) 13 ms
dns1.nic.uk(213.248.216.1) refer to ns4.webdomains.club(unknow IP)
extra IP lookup for ns4.webdomains.club at root server A.ROOT-SERVERS.NET(198.41.0.4)
lookup ns4.webdomains.club at A.ROOT-SERVERS.NET(198.41.0.4) 12 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to ns1.dns.nic.club(156.154.144.215)
lookup ns4.webdomains.club at ns1.dns.nic.club(156.154.144.215) 10 ms
ns1.dns.nic.club(156.154.144.215) refer to NS39.DOMAINCONTROL.COM(unknow IP)
extra IP lookup for NS39.DOMAINCONTROL.COM at root server A.ROOT-SERVERS.NET(198.41.0.4)
lookup NS39.DOMAINCONTROL.COM at A.ROOT-SERVERS.NET(198.41.0.4) 19 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to a.gtld-servers.net(192.5.6.30)
lookup NS39.DOMAINCONTROL.COM at a.gtld-servers.net(192.5.6.30) 3 ms
a.gtld-servers.net(192.5.6.30) refer to ans01.DOMAINCONTROL.COM(216.69.185.35)
lookup NS39.DOMAINCONTROL.COM at ans01.DOMAINCONTROL.COM(216.69.185.35) 9 ms
got A record 'NS39.DOMAINCONTROL.COM IN A 216.69.185.20' from NS39.DOMAINCONTROL.COM(216.69.185.35)
lookup ns4.webdomains.club at NS39.DOMAINCONTROL.COM(216.69.185.20) 3 ms
got A record 'ns4.webdomains.club IN A 162.251.82.124' from ns4.webdomains.club(216.69.185.20)
lookup rosmi.org.uk at ns4.webdomains.club(162.251.82.124) 56 ms
got A record 'rosmi.org.uk IN A 148.251.138.230' from rosmi.org.uk(162.251.82.124)
Total time: 138 ms