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.
(dns.home.pl. 86400 IN A 46.242.149.10) present at Parent, missing at (46.242.149.20, 46.242.149.10)
(dns2.home.pl. 86400 IN A 46.242.149.20) present at Parent, missing at (46.242.149.20, 46.242.149.10)
Nameservers A records
0/7
Some servers does not provide A records for nameservers.
missing A record(s) for (dns2.home.pl,dns3.home.pl,dns.home.pl) at nameserver 46.242.149.20
missing A record(s) for (dns2.home.pl,dns3.home.pl,dns.home.pl) at nameserver 46.242.149.10
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:
dns3.home.pl.
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
admin.home.pl
Serial
1538987684
Refresh
14400
Retry
7200
Expire
2419200
TTL
86400
Serial agreement
7/7
SUCCESS
All your nameservers agree that your SOA serial number is 1538987684 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: dns.home.pl That server is listed at the parent servers, which is correct.
Serial value
1/1
SUCCESS
SOA serial number is: 1538987684 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 : 14400 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
1/1
SUCCESS
SOA Expire time is : 2419200 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 : 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 na-strychu.pl
lookup na-strychu.pl at A.ROOT-SERVERS.NET(198.41.0.4) 10 ms
A.ROOT-SERVERS.NET(198.41.0.4) refer to a-dns.pl(194.181.87.156)
lookup na-strychu.pl at a-dns.pl(194.181.87.156) 104 ms
a-dns.pl(194.181.87.156) refer to dns2.home.pl(46.242.149.20)
lookup na-strychu.pl at dns2.home.pl(46.242.149.20) 1 ms
got A record 'na-strychu.pl IN A 188.128.197.72' from na-strychu.pl(46.242.149.20)