core-zero.com - dns.ninja

core-zero.com

DNSSEC⚠️ Not signed
A85.131.221.65🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.
PTRsv17104.xserver.jp
NSns1.xserver.jp ⭐
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MXcore-zero.com ⭐
A85.131.221.65🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.
PTRsv17104.xserver.jp
TXTv=spf1 +a:sv17104.xserver.jp +a:core-zero.com +mx include:spf.sender.xserver....
SOAns1.xserver.jproot@sv0.xserver.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=1785183807

Previously NS for

core-zero.com

MX for

core-zero.com

Same first word

core-zero.com

Similar names

zero-core.net

DNS History

14 records (7 active, 7 former)

20162017201820192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpcore-zero.comdns01.muumuu-domain.comdns02.muumuu-domain.comMXcore-zero.commx01.lolipop.jpA85.131.221.65162.43.94.168183.90.245.17210.172.144.242
○NScore-zero.com2015-06-28 → 2016-06-22 · 4 obs
● 2015-06-28 18:26:24
● 2016-06-22 11:30:24
○ 2017-02-05 17:38:28
○ 2026-07-27 20:37:16
○NSdns01.muumuu-domain.com2015-06-28 → 2016-06-22 · 4 obs
● 2015-06-28 18:26:24
● 2016-06-22 11:30:24
○ 2017-02-05 17:38:28
○ 2026-07-27 20:37:16
○NSdns02.muumuu-domain.com2015-06-28 → 2016-06-22 · 4 obs
● 2015-06-28 18:26:24
● 2016-06-22 11:30:24
○ 2017-02-05 17:38:28
○ 2026-07-27 20:37:16
●NSns1.xserver.jp2017-02-05 → 2026-07-27 · 3 obs
○ 2016-06-22 11:30:24
● 2017-02-05 17:38:28
● 2026-07-27 20:37:16
●NSns2.xserver.jp2017-02-05 → 2026-07-27 · 3 obs
○ 2016-06-22 11:30:24
● 2017-02-05 17:38:28
● 2026-07-27 20:37:16
●NSns3.xserver.jp2017-02-05 → 2026-07-27 · 3 obs
○ 2016-06-22 11:30:24
● 2017-02-05 17:38:28
● 2026-07-27 20:37:16
●NSns4.xserver.jp2017-02-05 → 2026-07-27 · 3 obs
○ 2016-06-22 11:30:24
● 2017-02-05 17:38:28
● 2026-07-27 20:37:16
●NSns5.xserver.jp2017-02-05 → 2026-07-27 · 3 obs
○ 2016-06-22 11:30:24
● 2017-02-05 17:38:28
● 2026-07-27 20:37:16
●MXcore-zero.com2017-02-05 → 2026-07-27 · 3 obs
○ 2016-06-22 11:30:24
● 2017-02-05 17:38:28
● 2026-07-27 20:37:16
○MXmx01.lolipop.jp2015-06-28 → 2016-06-22 · 4 obs
● 2015-06-28 18:26:24
● 2016-06-22 11:30:24
○ 2017-02-05 17:38:28
○ 2026-07-27 20:37:16
○A162.43.94.1682026-02-20 → 2026-05-17 · 5 obs
○ 2020-02-16 19:29:06
● 2026-02-20 06:23:26
● 2026-05-17 22:55:42
○ 2026-07-17 06:07:38
○ 2026-07-27 20:37:16
○A183.90.245.172017-02-05 → 2020-02-16 · 5 obs
○ 2016-06-22 11:30:24
● 2017-02-05 17:38:28
● 2020-02-16 19:29:06
○ 2026-02-20 06:23:26
○ 2026-07-27 20:37:16
○A210.172.144.2422015-06-28 → 2016-06-22 · 4 obs
● 2015-06-28 18:26:24
● 2016-06-22 11:30:24
○ 2017-02-05 17:38:28
○ 2026-07-27 20:37:16
●A85.131.221.652026-07-17 → 2026-07-27 · 3 obs
○ 2026-05-17 22:55:42
● 2026-07-17 06:07:38
● 2026-07-27 20:37:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
core-zero.comns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...-

✅ Authoritative Response

Server:202.226.36.246

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for core-zero.com (unsigned zone)

⏱️ Timing

Total: 3048ms | Queries: -

📄 Records

TypeCountSample Data
A185.131.221.65
NS5ns2.xserver.jp, ns3.xserver.jp...
MX1core-zero.com (pri: 0)
TXT1v=spf1 +a:sv17104.xserver.jp +a:core-zer
SOA1ns1.xserver.jp root.sv0.xserver.jp

Analysis

Mail Server Role

core-zero.com handles its own mail, functioning as its own mail server.

IP Addresses

core-zero.com resolves to just one IP address, 85.131.221.65.

Two other host names, along with gar-den.jp, hitachi-nerima.com and sv17104.xserver.jp, also share IP numbers with core-zero.com.

Name Servers

core-zero.com delegates to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

The name servers of core-zero.com overlap at least partially with those of other domains — among them shimautablog.com, leb-plus.co.jp, non-pro.design and two more.

These name servers commonly appear alongside the name servers ns4.xserver.jp and ns5.xserver.jp.

Hostnames that map to three IP numbers:

ns1.xserver.jp points to 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp points to 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp points to 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names that point to one IP address:

ns2.xserver.jp points to 35.72.43.26.

ns3.xserver.jp points to 202.226.36.247.

Mail Servers

core-zero.com is served by just one mail server: core-zero.com.

core-zero.com resolves to a single IP number: 85.131.221.65.