58btr.com DNS Report

Health Score: 73%

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Checked: 11 months before

Parent

NS records at parent servers

ns3.dnsv3.com [ 111.30.142.18 14.215.150.12 182.140.167.168 220.249.242.12 223.166.151.13 52.221.20.79 61.151.180.47 ]
ns4.dnsv3.com [ 101.226.220.15 111.30.142.18 125.39.213.167 180.163.19.16 52.221.20.79 59.36.120.144 61.151.180.48 ]
[These were obtained from e.gtld-servers.net.]

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.
(ns3.dnsv3.com.		172800	IN	A	111.30.142.18) present at Parent, missing at (61.151.180.48)
(ns3.dnsv3.com.		172800	IN	A	14.215.150.12) present at Parent, missing at (61.151.180.48)
(ns3.dnsv3.com.		172800	IN	A	182.140.167.168) present at Parent, missing at (61.151.180.48)
(ns3.dnsv3.com.		172800	IN	A	220.249.242.12) present at Parent, missing at (61.151.180.48)
(ns3.dnsv3.com.		172800	IN	A	223.166.151.13) present at Parent, missing at (61.151.180.48)
(ns3.dnsv3.com.		172800	IN	A	52.221.20.79) present at Parent, missing at (61.151.180.48)
(ns3.dnsv3.com.		172800	IN	A	61.151.180.47) present at Parent, missing at (61.151.180.48)
(ns4.dnsv3.com.		172800	IN	A	101.226.220.15) present at Parent, missing at (61.151.180.48)
(ns4.dnsv3.com.		172800	IN	A	111.30.142.18) present at Parent, missing at (61.151.180.48)
(ns4.dnsv3.com.		172800	IN	A	125.39.213.167) present at Parent, missing at (61.151.180.48)
(ns4.dnsv3.com.		172800	IN	A	180.163.19.16) present at Parent, missing at (61.151.180.48)
(ns4.dnsv3.com.		172800	IN	A	52.221.20.79) present at Parent, missing at (61.151.180.48)
(ns4.dnsv3.com.		172800	IN	A	59.36.120.144) present at Parent, missing at (61.151.180.48)
(ns4.dnsv3.com.		172800	IN	A	61.151.180.48) present at Parent, missing at (61.151.180.48)

Nameservers A records 0/7

Some servers does not provide A records for nameservers.
missing A record(s) for (ns4.dnsv3.com,ns3.dnsv3.com) at nameserver 61.151.180.48

Nameservers report identical NS records 7/7

SUCCESS The NS records at all your nameservers are identical.

Nameservers respond 0/10

Some nameservers does not respond:
61.151.180.47

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 7/7

SUCCESS All your nameservers are also listed at the parent servers.

Root missing nameservers 7/7

SUCCESS All of the nameservers listed at the parent nameservers are also listed as NS records at your nameservers.

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
enterprise1dnsadmin.dnspod.com
Serial
1459762295
Refresh
3600
Retry
180
Expire
1209600
TTL
600

Serial agreement 7/7

SUCCESS All your nameservers agree that your SOA serial number is 1459762295 That means that all your nameservers are using the same data.

SOA MNAME 3/3

SUCCESS SOA (Start of Authority) record states that your master (primary) name server is: ns3.dnsv3.com That server is listed at the parent servers, which is correct.

Serial value 1/1

SUCCESS SOA serial number is: 1459762295 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 : 180 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 1/1

SUCCESS SOA Expire time is : 1209600 seconds. This seems OK. (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 : 600 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 58btr.com
lookup 58btr.com at A.ROOT-SERVERS.NET(198.41.0.4) 10 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to e.gtld-servers.net(192.12.94.30)
lookup 58btr.com at e.gtld-servers.net(192.12.94.30) 10 ms
e.gtld-servers.net(192.12.94.30) refer to ns3.dnsv3.com(111.30.142.18)
lookup 58btr.com at ns3.dnsv3.com(111.30.142.18) 282 ms
got A record '58btr.com IN A 119.29.179.40' from 58btr.com(111.30.142.18)
Total time: 302 ms