Report for nttcdn.com
NS Records at Parent Servers
We have successfully fetched domain's NS records from parent name server (
b.gtld-servers.net.).
Domain NS records:
-
ns1.nttcdn.com. TTL=172800
[72.21.80.5]
[2606:2800:1::5]
-
ns2.nttcdn.com. TTL=172800
[72.21.80.6]
[2606:2800:1::6]
OK.
Parent name servers are offering glue for domain's name
servers. We received name servers list and it's IP addresses
from parent name server (b.gtld-servers.net.).
Name Servers Have A Records
OK.
Found A records for all name servers.
- ns1.nttcdn.com. → 72.21.80.5
- ns2.nttcdn.com. → 72.21.80.6
To reach your name servers via IPv4 an A record is needed for each name server.
Name Servers Have AAAA Records
OK.
Found AAAA records for all name servers.
- ns1.nttcdn.com. → 2606:2800:1::5
- ns2.nttcdn.com. → 2606:2800:1::6
To reach your name servers via IPv6 an AAAA record is needed for each name server.
Could not get NS records from your name servers.
Domain SOA Record:
- Primary nameserver: ns1.nttcdn.com.
- Hostmaster (e-mail): noc.
- Serial: 1654798117
- Refresh: 3600
- Retry: 600
- Expire: 604800
- Minimum TTL: 600
Name Servers Agreement on Serial Number
OK.
All name servers (2) have the same
serial number [1654798117].
Having different serials on your name servers may show inconsistencies between name servers
configuration (multiple masters), or communication errors (ACL and firewall issues).
NOTICE:
Although your serial is valid [1654798117],
it's not using recommended serial number format YYYYMMDDnn,
where YYYY is four-digit year number, MM is the month,
DD is the day and nn is the sequence number in case zone
file is updated more than once per day.
OK.
Primary name server is ns1.nttcdn.com. and is listed at the parent name servers.
The MNAME field defines the Primary Master name server for the zone,
this name server should be found in your NS records.
OK.
Contact email for DNS problems is noc@ (noc.).
RNAME field defines an administrative email for your zone. RFC2142 recommends using hostmaster
e-mail for this purpose, but any valid e-mail address can be used.
OK.
Refresh interval is 3600.
Recommended values [1200 .. 43200] (20 min ... 12 hours).
Refresh field from SOA record determines how quickly zone changes are propagated from master to slave.
OK.
Retry interval is 600.
Recommended values [120 .. 7200] (2 minutes .. 2 hours).
Retry field from SOA record defines how often slave should retry contacting master if connection to master failed during refresh.
OK.
Expire interval is 604800.
Recommended values [604800 .. 1209600] (1 week ... 2 weeks).
Expiry defines zone expiration time in seconds after which slave must re-validate zone file,
if contacting master fails then slave will stop responding to any queries.
WARNING:
Minimum TTL value is 600.
Recommended values [3600 .. 86400] (1 hour ... 1 day).
Minimum TTL was redefined in RFC 2308, now it defines the period of time used by slaves
to cache negative responses.
Could not get MX records from your name servers.
Could not get MX records from your name servers.
WARNING:
Could not resolve domain nttcdn.com..
Domain Name IPs are Public
Could not resolve nttcdn.com..
WARNING:
Could not resolve domain www.nttcdn.com..
Could not resolve www.nttcdn.com..
Report completed in 0.30 seconds.
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