Result

The parent zone is "jp" as returned from name servers "a.dns.jp/2001:dc4::1; a.dns.jp/203.119.1.1; b.dns.jp/2001:dc2::1; b.dns.jp/202.12.30.131; c.dns.jp/156.154.100.5; c.dns.jp/2001:502:ad09::5; d.dns.jp/2001:240::53; d.dns.jp/210.138.175.244; e.dns.jp/192.50.43.53; e.dns.jp/2001:200:c000::35; f.dns.jp/150.100.6.8; f.dns.jp/2001:2f8:0:100::153; g.dns.jp/203.119.40.1; h.dns.jp/161.232.72.25; h.dns.jp/2a01:8840:1bc::25".

The zone "machicomi.jp" is found.

Authoritative answer on SOA query for "machicomi.jp" is returned by name servers "ns4.dreamegg.jp/211.129.45.188; ns5.dreamegg.jp/164.70.1.32".

Nameserver ns4.dreamegg.jp has an IP address (211.129.45.188) with mismatched PTR result (smtp.machicomi.jp.).

Nameserver ns5.dreamegg.jp has an IP address (164.70.1.32) with mismatched PTR result (smtp.dreamarea.com.).

All Nameserver addresses are in the routable public addressing space.

Reverse DNS entry exists for each Nameserver IP address.

Nameserver ns2.dreamegg.jp/210.48.235.166 does not respond to any queries over UDP.

Nameserver ns2.dreamegg.jp/210.48.235.166 does not respond to any queries over TCP.

Nameserver ns5.dreamegg.jp/164.70.1.32 does not respond to any queries over TCP.

At least two IPv4 addresses of the authoritative nameservers are announced by different AS sets. A merged list of all AS: (2510, 2514, 4713).

The following name server(s) are announced in unique IPv4 prefix(es): "ns2.dreamegg.jp/210.48.235.166; ns4.dreamegg.jp/211.129.45.188; ns5.dreamegg.jp/164.70.1.32"

Saw SOA serial number 2024012208 on following nameserver set : ns4.dreamegg.jp/211.129.45.188; ns5.dreamegg.jp/164.70.1.32.

A single SOA serial number was found (2024012208).

A single SOA rname value was found (postmaster.ns4.dreamegg.jp.).

A single SOA time parameter set was seen (REFRESH=600, RETRY=600, EXPIRE=604800, MINIMUM=600).

A single NS set was found (ns4.dreamegg.jp.; ns5.dreamegg.jp.).

Glue records are consistent between glue and authoritative data.

A single SOA mname value was seen (ns4.dreamegg.jp.).

There are neither DS nor DNSKEY records for the zone.

Parent has nameserver(s) not listed at the child (ns2.dreamegg.jp).

Child lists no nameserver that resolves to an IPv6 address. If any were present, the minimum allowed would be 2.

Delegation lists no nameserver that resolves to an IPv6 address. If any were present, the minimum allowed would be 2.

Parent lists enough (3) nameservers (ns2.dreamegg.jp; ns4.dreamegg.jp; ns5.dreamegg.jp). Lower limit set to 2.

Child lists enough (2) nameservers (ns4.dreamegg.jp; ns5.dreamegg.jp). Lower limit set to 2.

Child lists enough (2) nameservers (ns4.dreamegg.jp; ns5.dreamegg.jp) that resolve to IPv4 addresses (164.70.1.32; 211.129.45.188). Lower limit set to 2.

Delegation lists enough (3) nameservers (ns2.dreamegg.jp; ns4.dreamegg.jp; ns5.dreamegg.jp) that resolve to IPv4 addresses (164.70.1.32; 210.48.235.166; 211.129.45.188). Lower limit set to 2.

All the IP addresses used by the nameservers in parent are unique.

All the IP addresses used by the nameservers in child are unique.

All the IP addresses used by the nameservers are unique.

The smallest possible legal referral packet is smaller than 513 octets (it is 350).

All these nameservers are confirmed to be authoritative : ns4.dreamegg.jp; ns5.dreamegg.jp.

No nameserver points to CNAME alias.

All the nameservers have SOA record.

Nameserver ns4.dreamegg.jp/211.129.45.188 is not a recursor.

Nameserver ns5.dreamegg.jp/164.70.1.32 is not a recursor.

AXFR not available on nameserver ns2.dreamegg.jp/210.48.235.166.

AXFR not available on nameserver ns4.dreamegg.jp/211.129.45.188.

AXFR not available on nameserver ns5.dreamegg.jp/164.70.1.32.

All nameservers reply with same IP used to query them.

All nameservers succeeded to resolve to an IP address.

None of the following nameservers returns an upward referral : ns2.dreamegg.jp; ns4.dreamegg.jp; ns5.dreamegg.jp.

Nameserver ns4.dreamegg.jp/211.129.45.188 preserves original case of queried names (WwW.MAcHicOMi.jp).

Nameserver ns5.dreamegg.jp/164.70.1.32 preserves original case of queried names (WwW.MAcHicOMi.jp).

When asked for SOA records on "www.machicomi.jp" with different cases, all servers reply consistently.

The following name server(s) do not respond to software version queries. Returned from name servers: "ns2.dreamegg.jp/210.48.235.166; ns4.dreamegg.jp/211.129.45.188; ns5.dreamegg.jp/164.70.1.32"

No illegal characters in the domain name (machicomi.jp).

Neither end of any label in the domain name (machicomi.jp) has a hyphen.

Domain name (machicomi.jp) has no label with a double hyphen ('--') in position 3 and 4 (with a prefix which is not 'xn--').

Nameserver (ns2.dreamegg.jp) syntax is valid.

Nameserver (ns4.dreamegg.jp) syntax is valid.

Nameserver (ns5.dreamegg.jp) syntax is valid.

There is no misused '@' character in the SOA RNAME field (postmaster.ns4.dreamegg.jp.).

The SOA RNAME field (postmaster@ns4.dreamegg.jp) is compliant with RFC2822.

SOA MNAME (ns4.dreamegg.jp) syntax is valid.

Domain name MX (smtp.machicomi.jp) syntax is valid.

SOA 'refresh' value (600) is less than the recommended one (14400).

SOA 'retry' value (600) is less than the recommended one (3600).

SOA 'refresh' value (600) is lower than the SOA 'retry' value (600).

SOA 'expire' value (604800) is higher than the minimum recommended value (604800) and not lower than the 'refresh' value (600).

SOA 'minimum' value (600) is between the recommended ones (300/86400).

SOA 'mname' value (ns4.dreamegg.jp) refers to a NS which is not an alias (CNAME).

SOA 'mname' value (ns4.dreamegg.jp) refers to a NS which is not an alias (CNAME).

MX record for the domain is not pointing to a CNAME.

Mail targets in the MX RRset "smtp.machicomi.jp." returned from name servers "211.129.45.188; 164.70.1.32".