sys-21.com - dns.ninja

sys-21.com

DNSSEC⚠️ Not signed
A122.28.41.130🇯🇵 OCN122.16.0.0/12 (AS4713) CIDR BLOCK 82 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN
PTRsys-21.com
NSmwns1.customer.ne.jp ⭐
A210.150.23.210🇯🇵 InfoSphere210.150.0.0/16 INFOSPHERE
NSmwns2.customer.ne.jp
A202.17.152.183🇯🇵 InfoSphere202.17.128.0/19 INFOSPHERE
MXmwbgw1.ocn.ad.jp ⭐
A210.145.253.233🇯🇵 OCN210.145.0.0/16 (AS4713) CIDR BLOCK 18 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN
MXmwbgw2.ocn.ad.jp ⭐
A210.145.253.234🇯🇵 OCN210.145.0.0/16 (AS4713) CIDR BLOCK 18 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN
TXTv=spf1 a include:_spf.bizmw.com ~all
SOAmwns1.customer.ne.jphost-plan-ac@ntt.com serial=1614109430

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=1782937761
WOT: UNKNOWN (68/100)

PTR for

130.41.28.122.in-addr.arpa

Same first word

sys-21.com

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSmwns1.customer.ne.jpmwns2.customer.ne.jpns-213.dns.jp-e1.cloudn-service.comns-214.dns.jp-w1.cloudn-service.comns-215.dns.us-e1.cloudn-service.comns1.secure.netns2.secure.netMXmwbgw1.ocn.ad.jpmwbgw2.ocn.ad.jpin.sjc.mx.trendmicro.comA122.28.41.130122.1.207.81153.254.64.206
●NSmwns1.customer.ne.jp2026-03-10 → 2026-07-01 · 3 obs
○ 2020-11-08 06:01:48
● 2026-03-10 00:17:48
● 2026-07-01 20:35:20
●NSmwns2.customer.ne.jp2026-03-10 → 2026-07-01 · 3 obs
○ 2020-11-08 06:01:48
● 2026-03-10 00:17:48
● 2026-07-01 20:35:20
○NSns-213.dns.jp-e1.cloudn-service.com2016-03-17 → 2020-11-08 · 5 obs
○ 2015-12-15 11:32:02
● 2016-03-17 11:51:58
● 2020-11-08 06:01:48
○ 2026-03-10 00:17:48
○ 2026-07-01 20:35:20
○NSns-214.dns.jp-w1.cloudn-service.com2016-03-17 → 2020-11-08 · 5 obs
○ 2015-12-15 11:32:02
● 2016-03-17 11:51:58
● 2020-11-08 06:01:48
○ 2026-03-10 00:17:48
○ 2026-07-01 20:35:20
○NSns-215.dns.us-e1.cloudn-service.com2016-03-17 → 2020-11-08 · 5 obs
○ 2015-12-15 11:32:02
● 2016-03-17 11:51:58
● 2020-11-08 06:01:48
○ 2026-03-10 00:17:48
○ 2026-07-01 20:35:20
○NSns1.secure.net2015-07-16 → 2015-12-15 · 4 obs
● 2015-07-16 23:46:00
● 2015-12-15 11:32:02
○ 2016-03-17 11:51:58
○ 2026-07-01 20:35:20
○NSns2.secure.net2015-07-16 → 2015-12-15 · 4 obs
● 2015-07-16 23:46:00
● 2015-12-15 11:32:02
○ 2016-03-17 11:51:58
○ 2026-07-01 20:35:20
○MXin.sjc.mx.trendmicro.com2015-07-16 → 2015-07-16 · 3 obs
● 2015-07-16 23:46:00
○ 2015-12-15 11:32:02
○ 2026-07-01 20:35:20
●MXmwbgw1.ocn.ad.jp2015-12-15 → 2026-07-01 · 3 obs
○ 2015-07-16 23:46:00
● 2015-12-15 11:32:02
● 2026-07-01 20:35:20
●MXmwbgw2.ocn.ad.jp2015-12-15 → 2026-07-01 · 3 obs
○ 2015-07-16 23:46:00
● 2015-12-15 11:32:02
● 2026-07-01 20:35:20
○A122.1.207.812015-12-15 → 2020-11-08 · 5 obs
○ 2015-07-16 23:46:00
● 2015-12-15 11:32:02
● 2020-11-08 06:01:48
○ 2026-03-10 00:17:48
○ 2026-07-01 20:35:20
●A122.28.41.1302026-03-10 → 2026-07-01 · 3 obs
○ 2020-11-08 06:01:48
● 2026-03-10 00:17:48
● 2026-07-01 20:35:20
○A153.254.64.2062015-07-16 → 2015-07-16 · 3 obs
● 2015-07-16 23:46:00
○ 2015-12-15 11:32:02
○ 2026-07-01 20:35:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
sys-21.commwns1.customer.ne.jp, mwns2.customer.ne.jp-

✅ Authoritative Response

Server:202.17.152.183

NS records: mwns1.customer.ne.jp, mwns2.customer.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sys-21.com (unsigned zone)

⏱️ Timing

Total: 1613ms | Queries: -

📄 Records

TypeCountSample Data
A1122.28.41.130
NS2mwns1.customer.ne.jp, mwns2.customer.ne.jp
MX2mwbgw2.ocn.ad.jp (pri: 10), mwbgw1.ocn.ad.jp (pri: 10)
TXT1v=spf1 a include:_spf.bizmw.com ~all
SOA1mwns1.customer.ne.jp host-plan-ac.ntt.co

Analysis

IP Addresses

sys-21.com points to a single IP number: 122.28.41.130.

Name Servers

DNS delegation for sys-21.com points to two name servers: mwns1.customer.ne.jp and mwns2.customer.ne.jp.

sys-21.com shares its name server setup with other domains, including akira-gero.co.jp, hokkohbus.co.jp, hoda-oil.co.jp and two others.

sys-21.com has partial name server overlap with other domains, including snowcon.com.

mwns1.customer.ne.jp directs to 210.150.23.210 and mwns2.customer.ne.jp directs to 202.17.152.183; each host name points to exactly one IP number.

Mail Servers

sys-21.com has two mail servers: mwbgw1.ocn.ad.jp and mwbgw2.ocn.ad.jp.

sys-21.com shares the same mail server setup as other domains, including infotec-s.com, koyo-moneca.co.jp, fukuokaknit.com and two others.

mwbgw1.ocn.ad.jp directs to 210.145.253.233 and mwbgw2.ocn.ad.jp directs to 210.145.253.234; each host name points to exactly one IP number.