thienanit.org DNS Report

Health Score: 68%

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Checked: 5 months before

Parent

NS records at parent servers

ns2.thienanit.org [ 162.251.82.120 ]
ns4.thienanit.org [ 162.251.82.124 ]
ns3.thienanit.org [ 162.251.82.247 ]
ns1.thienanit.org [ 162.251.82.251 162.251.82.123 ]
[These were obtained from d0.org.afilias-nst.org.]

Glue at parent nameservers 7/7

SUCCESS Parent nameservers know A records for your domain, Very good !

NS

Mismatched glue 0/7

The glue provided by the root servers does not match glue that provided by your authoritative DNS servers.
(ns1.thienanit.org.	86400	IN	A	162.251.82.251) present at Parent, missing at (162.251.82.120, 162.251.82.124, 162.251.82.247, 162.251.82.123)
(ns1.thienanit.org.	86400	IN	A	162.251.82.123) present at Parent, missing at (162.251.82.120, 162.251.82.124, 162.251.82.247, 162.251.82.123)
(ns2.thienanit.org.	86400	IN	A	162.251.82.120) present at Parent, missing at (162.251.82.120, 162.251.82.124, 162.251.82.247, 162.251.82.123)
(ns3.thienanit.org.	86400	IN	A	162.251.82.247) present at Parent, missing at (162.251.82.120, 162.251.82.124, 162.251.82.247, 162.251.82.123)
(ns4.thienanit.org.	86400	IN	A	162.251.82.124) present at Parent, missing at (162.251.82.120, 162.251.82.124, 162.251.82.247, 162.251.82.123)

Nameservers A records 0/7

Some servers does not provide A records for nameservers.
missing A record(s) for (ns3.luutruso.net,ns1.luutruso.net,ns2.luutruso.net,ns4.luutruso.net) at nameserver 162.251.82.120
missing A record(s) for (ns3.luutruso.net,ns4.luutruso.net,ns2.luutruso.net,ns1.luutruso.net) at nameserver 162.251.82.124
missing A record(s) for (ns1.luutruso.net,ns4.luutruso.net,ns3.luutruso.net,ns2.luutruso.net) at nameserver 162.251.82.247
missing A record(s) for (ns1.luutruso.net,ns3.luutruso.net,ns2.luutruso.net,ns4.luutruso.net) at nameserver 162.251.82.123

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:
ns3.luutruso.net.
ns1.luutruso.net.
ns2.luutruso.net.
ns4.luutruso.net.

Root missing nameservers 0/7

DANGER There are nameservers not listed at your nameservers:
ns2.thienanit.org.
ns4.thienanit.org.
ns3.thienanit.org.
ns1.thienanit.org.

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
vangoc93.gmail.com
Serial
2016102607
Refresh
7200
Retry
7200
Expire
172800
TTL
7200

Serial agreement 7/7

SUCCESS All your nameservers agree that your SOA serial number is 2016102607 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: ns4.luutruso.net, but that server is not listed at the parent servers.

Serial value 1/1

SUCCESS SOA serial number is: 2016102607 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 thienanit.org
lookup thienanit.org at A.ROOT-SERVERS.NET(198.41.0.4) 4 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to d0.org.afilias-nst.org(199.19.57.1)
lookup thienanit.org at d0.org.afilias-nst.org(199.19.57.1) 78 ms
d0.org.afilias-nst.org(199.19.57.1) refer to ns3.thienanit.org(162.251.82.247)
lookup thienanit.org at ns3.thienanit.org(162.251.82.247) 40 ms
RECORD does not exist
Total time: 122 ms