Domain report: nipponsteel.com

Registration

info

.com generic · Japan Registry Services Co., Ltd. · expires 2027-04-29

Found

TLD: .com (generic)
ICANN policies apply: yes
Registrar: Japan Registry Services Co., Ltd.
Registered: 29 April 2002
Last changed: 28 April 2026
Expires: 29 April 2027
Status: client transfer prohibited
Registry nameservers: ns018-4s6t3ijenvjg1143.4.d-53.info, ns018-4s6t3ijenvjg1143.4.d-53.jp, ns018-4s6t3ijenvjg1143.4.d-53.org
RDAP server: https://rdap.verisign.com/com/v1/

Checks

i

.com is a generic TLD (gTLD)

Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.

#1
✓ TLD delegated and signed #2

.com is delegated in the root zone and DNSSEC-signed.
✓ Expires on 2027-04-29 #3

The registration is valid until 2027-04-29 (189 days).
✓ Transfer locked #4

Registry status: client transfer prohibited.
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

Delegation

pass

ns018-4s6t3ijenvjg1143.4.d-53.info, ns018-4s6t3ijenvjg1143.4.d-53.jp, ns018-4s6t3ijenvjg1143.4.d-53.org

Found

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: ns018-4s6t3ijenvjg1143.4.d-53.info, ns018-4s6t3ijenvjg1143.4.d-53.jp, ns018-4s6t3ijenvjg1143.4.d-53.org
NS in the zone: ns018-4s6t3ijenvjg1143.4.d-53.info, ns018-4s6t3ijenvjg1143.4.d-53.jp, ns018-4s6t3ijenvjg1143.4.d-53.org

Nameserver	Addresses	Network (AS)	Glue
ns018-4s6t3ijenvjg1143.4.d-53.info	202.32.219.49 2001:240:bb81::28:49	AS2497 IIJ - Internet Initiative Japan Inc., JP AS2497 IIJ - Internet Initiative Japan Inc., JP	-
ns018-4s6t3ijenvjg1143.4.d-53.jp	203.180.146.109 162.159.26.190 162.159.27.232 2400:cb00:2049:1::a29f:1abe 2001:240:bb81::29:1109 2400:cb00:2049:1::a29f:1be8	AS2497 IIJ - Internet Initiative Japan Inc., JP AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS2497 IIJ - Internet Initiative Japan Inc., JP AS13335 CLOUDFLARENET - Cloudflare, Inc., US	-
ns018-4s6t3ijenvjg1143.4.d-53.org	210.138.20.109 2001:240:bb81::29:109	AS2497 IIJ - Internet Initiative Japan Inc., JP AS2497 IIJ - Internet Initiative Japan Inc., JP	-

Checks

✓ 3 nameservers #6

Delegated to ns018-4s6t3ijenvjg1143.4.d-53.info, ns018-4s6t3ijenvjg1143.4.d-53.jp, ns018-4s6t3ijenvjg1143.4.d-53.org.
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ No glue needed #8

All nameservers are outside the zone, so no glue records are needed.
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
✓ Nameservers in different networks #10

The nameservers are spread over 5 IPv4 /24s and 2 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 4 addresses; AS2497 (IIJ - Internet Initiative Japan Inc., JP): 6 addresses.
✓ Nameserver names under 3 TLDs #12

Nameserver names use the TLDs .info, .jp, .org.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

fail

10 of 10 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns018-4s6t3ijenvjg1143.4.d-53.info 202.32.219.49	NOERROR, 218 ms, authoritative	no	yes / yes	refused	-
ns018-4s6t3ijenvjg1143.4.d-53.info 2001:240:bb81::28:49	NOERROR, 248 ms, authoritative	no	yes / yes	refused	-
ns018-4s6t3ijenvjg1143.4.d-53.jp 203.180.146.109	NOERROR, 23 ms, authoritative	no	yes / yes	refused	IIJ_DNS_PLATFORM_SERVICE_K
ns018-4s6t3ijenvjg1143.4.d-53.jp 162.159.26.190	NOERROR, 97 ms, authoritative	no	yes / yes	refused	2026.10.8
ns018-4s6t3ijenvjg1143.4.d-53.jp 162.159.27.232	NOERROR, 97 ms, authoritative	no	yes / yes	refused	2026.10.8
ns018-4s6t3ijenvjg1143.4.d-53.jp 2400:cb00:2049:1::a29f:1abe	NOERROR, 97 ms, authoritative	no	yes / yes	refused	2026.10.8
ns018-4s6t3ijenvjg1143.4.d-53.jp 2001:240:bb81::29:1109	NOERROR, 25 ms, authoritative	no	no / yes	refused	IIJ_DNS_PLATFORM_SERVICE_K
ns018-4s6t3ijenvjg1143.4.d-53.jp 2400:cb00:2049:1::a29f:1be8	NOERROR, 97 ms, authoritative	no	yes / yes	refused	2026.10.8
ns018-4s6t3ijenvjg1143.4.d-53.org 210.138.20.109	NOERROR, 21 ms, authoritative	no	yes / yes	refused	IIJ_DNS_PLATFORM_SERVICE_K
ns018-4s6t3ijenvjg1143.4.d-53.org 2001:240:bb81::29:109	NOERROR, 25 ms, authoritative	no	no / yes	refused	IIJ_DNS_PLATFORM_SERVICE_K

Checks

✓ All respond #14

All 10 nameserver addresses answered.
✓ All authoritative #15

Every responding nameserver answers authoritatively for the zone.
✓ No recursion #16

The nameservers do not answer recursive queries for other domains.
!

Software version disclosed

These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns018-4s6t3ijenvjg1143.4.d-53.jp: "2026.10.8". Hide or replace the version string.

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✗

No DNS over TCP

DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns018-4s6t3ijenvjg1143.4.d-53.jp (2001:240:bb81::29:1109): read tcp [2a01:4f8:1c1c:eebf::1]:40216->[2001:240:bb81::29:1109]:53: read: connection reset by peer; ns018-4s6t3ijenvjg1143.4.d-53.org (2001:240:bb81::29:109): read tcp [2a01:4f8:1c1c:eebf::1]:38184->[2001:240:bb81::29:109]:53: read: connection reset by peer.

#19
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

SOA

info

serial 2026101400 · primary ns000.d-53.net

Found

Primary (MNAME): ns000.d-53.net
Contact (RNAME): dns-managers.iij.ad.jp
Serial: 2026101400
Refresh / retry: 3600 s / 600 s
Expire: 604800 s
Negative TTL: 900 s

Serial per nameserver

Nameserver	Serial
ns018-4s6t3ijenvjg1143.4.d-53.info (202.32.219.49)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.info (2001:240:bb81::28:49)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.jp (203.180.146.109)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.jp (162.159.26.190)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.jp (162.159.27.232)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.jp (2400:cb00:2049:1::a29f:1abe)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.jp (2001:240:bb81::29:1109)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.jp (2400:cb00:2049:1::a29f:1be8)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.org (210.138.20.109)	2026101400
ns018-4s6t3ijenvjg1143.4.d-53.org (2001:240:bb81::29:109)	2026101400

Checks

✓ Serial 2026101400 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 1h, retry 10m, expire 7d, negative TTL 15m.
i

Hidden master (not resolvable)

The primary nameserver ns000.d-53.net is not listed as a nameserver and does not resolve publicly: a hidden master, or a placeholder name. Some tools (e.g. dynamic updates) use MNAME to find the primary.

#24
✓ Contact dns-managers@iij.ad.jp #25

The SOA RNAME dns-managers.iij.ad.jp means dns-managers@iij.ad.jp.
✓ Date-based serial #26

The serial 2026101400 follows the YYYYMMDDnn convention (2026-10-14).

DNSSEC

warn

Not signed

Found

Validated by resolver: no

Checks

!

Not signed

The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

#27

Records

info

12 records at the apex

Found

Read from: 202.32.219.49:53

Type	Value	TTL
SOA	ns000.d-53.net. dns-managers.iij.ad.jp. 2026101400 3600 600 604800 900	7200
NS	ns018-4s6t3ijenvjg1143.4.d-53.jp.	7200
NS	ns018-4s6t3ijenvjg1143.4.d-53.org.	7200
NS	ns018-4s6t3ijenvjg1143.4.d-53.info.	7200
MX	10 alt1.ap.email.fireeyecloud.com.	7200
MX	20 alt2.ap.email.fireeyecloud.com.	7200
MX	30 alt3.ap.email.fireeyecloud.com.	7200
MX	0 primary.ap.email.fireeyecloud.com.	7200
TXT	"jjkm72hm9o1lrjtpe8lmiqh4k7"	7200
TXT	"asnscustomer-dnsh-verification=dea67ad2104c326f09a298c870930ef1"	7200
TXT	"3ls4i17b3moopot3k2esstb0ka"	7200
TXT	"6b1narnqmes2cqibo31e3evh74"	7200

Checks

✓ TTLs within range #32

TTLs: MX 2h, NS 2h. The NS TTL at the parent is 2d and in the zone 2h; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
i

No CAA records

Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.

#35