sys-k.com - robtex.com

sys-k.com

DNSSEC⚠️ Not signed
A85.131.213.113🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.
PTRsv16732.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
TXTv=spf1 +a:sv16732.xserver.jp +a:sys-k.com +mx include:spf.sender.xserver.jp ~all
SOAns1.xserver.jproot@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=1774624217

Previously MX for

sys-k.com

Same first word

sys-k.co.jp
sys-k.biz
sys-k.com
sys-k.net

Similar names

k-sys.de
y-sks.jp
y-ssk.or.jp
ks-ys.com
sky-s.ch
kys-s.com
ks-sy.cn
s-sky.net
sky-s.jp
sk-ys.com
yk-ss.co.jp
sky-s.com
k-sys.com
s-sky.ru
ks-sy.com
sk-sy.com
k-sys.ru
s-sky.com
yss-k.jp
k-sys.co.uk
sy-sk.com
ss-yk.com
k-sys.io
ys-ks.com
k-sys.ch
sky-s.net

DNS History

14 records (6 active, 8 former)

200920112013201520172019202120232025NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpmaster.dns.ne.jpns1.dns.ne.jpns1.serverhome.comns2.dns.ne.jpns2.serverhome.comMXsys-k.comA85.131.213.113219.94.162.8466.45.246.138
○NSmaster.dns.ne.jp2015-05-18 → 2020-03-10 · 5 obs
○ 2008-03-10 06:51:14
● 2015-05-18 00:40:04
● 2020-03-10 04:00:08
○ 2026-03-26 02:55:22
○ 2026-03-27 15:22:22
○NSns1.dns.ne.jp2015-05-18 → 2020-03-10 · 5 obs
○ 2008-03-10 06:51:14
● 2015-05-18 00:40:04
● 2020-03-10 04:00:08
○ 2026-03-26 02:55:22
○ 2026-03-27 15:22:22
○NSns1.serverhome.com2008-03-10 → 2008-03-10 · 3 obs
● 2008-03-10 06:51:14
○ 2015-05-18 00:40:04
○ 2026-03-27 15:22:22
●NSns1.xserver.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2020-03-10 04:00:08
● 2026-03-26 02:55:22
● 2026-03-27 15:22:22
○NSns2.dns.ne.jp2015-05-18 → 2020-03-10 · 5 obs
○ 2008-03-10 06:51:14
● 2015-05-18 00:40:04
● 2020-03-10 04:00:08
○ 2026-03-26 02:55:22
○ 2026-03-27 15:22:22
○NSns2.serverhome.com2008-03-10 → 2008-03-10 · 3 obs
● 2008-03-10 06:51:14
○ 2015-05-18 00:40:04
○ 2026-03-27 15:22:22
●NSns2.xserver.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2020-03-10 04:00:08
● 2026-03-26 02:55:22
● 2026-03-27 15:22:22
●NSns3.xserver.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2020-03-10 04:00:08
● 2026-03-26 02:55:22
● 2026-03-27 15:22:22
●NSns4.xserver.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2020-03-10 04:00:08
● 2026-03-26 02:55:22
● 2026-03-27 15:22:22
●NSns5.xserver.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2020-03-10 04:00:08
● 2026-03-26 02:55:22
● 2026-03-27 15:22:22
○MXsys-k.com2015-05-18 → 2020-03-10 · 5 obs
○ 2008-03-10 06:51:14
● 2015-05-18 00:40:04
● 2020-03-10 04:00:08
○ 2026-03-26 02:55:22
○ 2026-03-27 15:22:22
○A219.94.162.842015-05-18 → 2020-03-10 · 5 obs
○ 2008-03-10 06:51:14
● 2015-05-18 00:40:04
● 2020-03-10 04:00:08
○ 2026-03-26 02:55:22
○ 2026-03-27 15:22:22
○A66.45.246.1382008-03-10 → 2008-03-10 · 3 obs
● 2008-03-10 06:51:14
○ 2015-05-18 00:40:04
○ 2026-03-27 15:22:22
●A85.131.213.1132026-03-26 → 2026-03-27 · 3 obs
○ 2020-03-10 04:00:08
● 2026-03-26 02:55:22
● 2026-03-27 15:22:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, l.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net...-
sys-k.comns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...-

✅ Authoritative Response

Server:202.226.37.247

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 sys-k.com (unsigned zone)

⏱️ Timing

Total: 1333ms | Queries: -

📄 Records

TypeCountSample Data
A185.131.213.113
NS5ns2.xserver.jp, ns4.xserver.jp...
TXT1v=spf1 +a:sv16732.xserver.jp +a:sys-k.co
SOA1ns1.xserver.jp root.xserver.jp

Analysis

IP Addresses

sys-k.com points to a single IP number: 85.131.213.113.

Other host names, for instance knd-office.com, tiger-child.com, karaushi-office.jp, www.tokairiken.co.jp and www.karaushi-office.jp share IP numbers with sys-k.com.

Name Servers

sys-k.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

sys-k.com shares name servers with other domains at least partially, for instance atznet.co.jp, saito-gyosei.com, esreve.com, tentoco.com and yokoshi.net.

Host names with 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 with one IP number:

ns2.xserver.jp points to: 35.72.43.26.

ns3.xserver.jp points to: 202.226.36.247.