nievrerenov.fr DNS Report

Health Score: 65%

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Checked: 4 months before

Parent

NS records at parent servers

ns4.cienum.fr
dns.cg58.fr
[These were obtained from d.ext.nic.fr.]

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 cienum.fr Check cg58.fr

Nameservers A records 0/7

Some servers does not provide A records for nameservers.
missing A record(s) for (ns4.cienum.fr) at nameserver 91.103.232.240
missing A record(s) for (ns4.cienum.fr) at nameserver 37.58.175.12

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 2/5

WARNING You have 2 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:
dns.nievrerenov.fr.

Root missing nameservers 0/7

DANGER There are nameservers not listed at your nameservers:
dns.cg58.fr.

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
admin.nievrerenov.fr
Serial
2016092801
Refresh
3600
Retry
1800
Expire
3600000
TTL
86400

Serial agreement 7/7

SUCCESS All your nameservers agree that your SOA serial number is 2016092801 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: dns.nievrerenov.fr, but that server is not listed at the parent servers.

Serial value 1/1

SUCCESS SOA serial number is: 2016092801 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 : 3600 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 : 1800 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 : 3600000 seconds. This seems too big;. (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 : 86400 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 nievrerenov.fr
lookup nievrerenov.fr at A.ROOT-SERVERS.NET(198.41.0.4) 10 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to d.ext.nic.fr(192.5.4.2)
lookup nievrerenov.fr at d.ext.nic.fr(192.5.4.2) 64 ms
d.ext.nic.fr(192.5.4.2) refer to dns.cg58.fr(unknow IP)
extra IP lookup for dns.cg58.fr at root server A.ROOT-SERVERS.NET(198.41.0.4)
lookup dns.cg58.fr at A.ROOT-SERVERS.NET(198.41.0.4) 9 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to d.ext.nic.fr(192.5.4.2)
lookup dns.cg58.fr at d.ext.nic.fr(192.5.4.2) 64 ms
d.ext.nic.fr(192.5.4.2) refer to ns4.cienum.fr(unknow IP)
extra IP lookup for ns4.cienum.fr at root server A.ROOT-SERVERS.NET(198.41.0.4)
lookup ns4.cienum.fr at A.ROOT-SERVERS.NET(198.41.0.4) 9 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to e.ext.nic.fr(193.176.144.22)
lookup ns4.cienum.fr at e.ext.nic.fr(193.176.144.22) 90 ms
e.ext.nic.fr(193.176.144.22) refer to ns1.cornut.fr(193.108.197.1)
lookup ns4.cienum.fr at ns1.cornut.fr(193.108.197.1) 95 ms
got A record 'ns4.cienum.fr IN A 91.103.232.240' from ns4.cienum.fr(193.108.197.1)
lookup dns.cg58.fr at ns4.cienum.fr(91.103.232.240) 94 ms
got A record 'dns.cg58.fr IN A 37.58.175.12' from dns.cg58.fr(91.103.232.240)
lookup nievrerenov.fr at dns.cg58.fr(37.58.175.12) 90 ms
got A record 'nievrerenov.fr IN A 37.58.175.11' from nievrerenov.fr(37.58.175.12)
Total time: 525 ms