728kz.com - robtex.com

728kz.com

DNSSEC⚠️ Not signed
A183.90.231.72🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv271.xbiz.ne.jp
NSns1.xbiz.ne.jp ⭐
A157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
PTRns1.xbiz.ne.jp
NSns2.xbiz.ne.jp
A35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xbiz.ne.jp
NSns3.xbiz.ne.jp
A157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc.
PTRns3.xbiz.ne.jp
MX728kz.com ⭐
A183.90.231.72🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv271.xbiz.ne.jp
TXTv=spf1 +a:sv271.xbiz.ne.jp +a:728kz.com +mx include:spf.sender.xserver.jp ~all
SOAns1.xbiz.ne.jproot@xbiz.ne.jp serial=0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1782382390

MX for

728kz.com

Subdomains

dns.728kz.com

Same first word

728kz.com

Similar names

278zk.com

DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NSns1.xbiz.ne.jpns2.xbiz.ne.jpns3.xbiz.ne.jp2nd.dnsv.jpdns.728kz.comMX728kz.comA183.90.231.72157.7.220.48
○NS2nd.dnsv.jp2015-08-12 → 2017-11-26 · 4 obs
● 2015-08-12 09:06:02
● 2017-11-26 05:39:42
○ 2026-04-09 18:24:40
○ 2026-06-25 10:16:28
○NSdns.728kz.com2015-08-12 → 2017-11-26 · 4 obs
● 2015-08-12 09:06:02
● 2017-11-26 05:39:42
○ 2026-04-09 18:24:40
○ 2026-06-25 10:16:28
●NSns1.xbiz.ne.jp2026-04-09 → 2026-06-25 · 3 obs
○ 2017-11-26 05:39:42
● 2026-04-09 18:24:40
● 2026-06-25 10:16:28
●NSns2.xbiz.ne.jp2026-04-09 → 2026-06-25 · 3 obs
○ 2017-11-26 05:39:42
● 2026-04-09 18:24:40
● 2026-06-25 10:16:28
●NSns3.xbiz.ne.jp2026-04-09 → 2026-06-25 · 3 obs
○ 2017-11-26 05:39:42
● 2026-04-09 18:24:40
● 2026-06-25 10:16:28
●MX728kz.com2015-08-12 → 2026-06-25 · 2 obs
● 2015-08-12 09:06:02
● 2026-06-25 10:16:28
○A157.7.220.482015-08-12 → 2017-11-26 · 4 obs
● 2015-08-12 09:06:02
● 2017-11-26 05:39:42
○ 2026-04-09 18:24:40
○ 2026-06-25 10:16:28
●A183.90.231.722026-04-09 → 2026-06-25 · 3 obs
○ 2017-11-26 05:39:42
● 2026-04-09 18:24:40
● 2026-06-25 10:16:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net...-
728kz.comns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp-

✅ Authoritative Response

Server:157.112.182.247

NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 728kz.com (unsigned zone)

⏱️ Timing

Total: 1340ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.231.72
NS3ns2.xbiz.ne.jp, ns1.xbiz.ne.jp...
MX1728kz.com (pri: 0)
TXT1v=spf1 +a:sv271.xbiz.ne.jp +a:728kz.com
SOA1ns1.xbiz.ne.jp root.xbiz.ne.jp

Analysis

Hierarchy

dns.728kz.com is delegated beneath 728kz.com.

Mail Server Role

728kz.com serves as a mail server for 728kz.com.

IP Addresses

728kz.com has exactly one IP address — 183.90.231.72.

sola-resort.com, kobewedding.jp, www.sola-resort.com plus two other host names have IP numbers in common with 728kz.com.

Name Servers

728kz.com is delegated to three name servers: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.

There is at least partial name server overlap between 728kz.com and other domains — hakuyo-kai.or.jp, kobe-sumasui.jp, kanatta-portal.com and two more among them.

These name servers frequently co-occur with the name servers ns4.xbiz.ne.jp and ns5.xbiz.ne.jp.

ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp each resolve to a single IP address: ns1.xbiz.ne.jp resolves to 157.112.182.247, ns2.xbiz.ne.jp resolves to 35.76.79.244 and ns3.xbiz.ne.jp resolves to 157.112.191.237.

Mail Servers

728kz.com uses exactly one mail server, which is 728kz.com.

728kz.com resolves to a single IP number: 183.90.231.72.