cuio.net - dns.ninja

cuio.net

DNSSEC⚠️ Not signed
A2001:e42:102:1109:153:121:57:24🇯🇵 SAKURA-B2001:e40::/30 SAKURA Internet Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka 530-0011, JAPAN
PTRtk.cuio.net
A153.121.57.24🇯🇵 SAKURA-B153.121.32.0/19 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRns2.dns.ne.jp
MXtk.cuio.net ⭐
A153.121.57.24🇯🇵 SAKURA-B153.121.32.0/19 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRtk.cuio.net
TXTv=spf1 ip4:153.121.57.24 include:_spf.google.com ~all
TXTgoogle-site-verification=qVP8DsPDuQ8nHSK_I0lh0jCyU7gL-ok2yFfsH-cZ_N4
SOAmaster.dns.ne.jptech@sakura.ad.jp 2026-06-29 #2

net

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=1784744257
🔒 HSTS Preload (+subdomains)

Subdomains

tk.cuio.net
jp2.cuio.net

Same first word

cuio.de
cuio.asia
cuio.cn
cuio.net

Similar names

uico.de
icou.kr
ouci.com.cn
ciou.net
coiu.org
icuo.com
oiuc.com
ocui.com
oicu.org
coiu.info
uico.ru
ocui.eu
iouc.org
cuoi.de
ucoi.it
uico.co
ucio.fr
ocui.at
uico.cn
iuoc.net
oicu.net
ciou.eu
uoic.cn
iuco.net
iuco.cn
uico.pl
ucio.net
ocui.info
cuoi.com.vn
cuoi.it
icou.org
uico.com
coui.net
coui.xyz
uoic.com
iuco.org
cuoi.com
iouc.cn
iocu.org
coiu.com
cuoi.tv
iuoc.com
iuoc.cn
ucoi.com
oicu.github.io
oicu.com.au
cuoi.ir
coiu.net
ouci.cn
iouc.com
uioc.com
ouci.com
ciou.com
oicu.cn
uico.net
cuoi.io.vn
icou.cn
ciou.de
iocu.com
ouci.info
ucoi.de
cuoi.cn
icuo.us
coui.de
coiu.pl
uoci.com
ucoi.org
ouic.com
oicu.com
uico.org
ucio.com
ocui.de
iocu.cn
ucio.cn
ucio.ru
icou.de
icou.com
icou.jp

DNS History

17 records (6 active, 11 former)

200920112013201520172019202120232025NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpappctl.atsrv.intrans01.atsrv.jpns02.atsrv.jpns03.ex-cloud.jpns04.ex-cloud.jpns1.domain.livedoor.comns2.domain.livedoor.comMXtk.cuio.netdev.cuio.netjp2.cuio.netA153.121.57.242001:e42:102:1109:153:121:57:24153.121.46.226216.75.41.164
○NSappctl.atsrv.intra2015-10-18 → 2017-08-20 · 5 obs
○ 2015-05-27 00:55:20
● 2015-10-18 01:40:04
● 2017-08-20 02:22:40
○ 2026-02-14 19:50:02
○ 2026-07-22 18:47:44
●NSmaster.dns.ne.jp2026-02-14 → 2026-07-22 · 3 obs
○ 2017-08-20 02:22:40
● 2026-02-14 19:50:02
● 2026-07-22 18:47:44
○NSns01.atsrv.jp2015-10-18 → 2017-08-20 · 5 obs
○ 2015-05-27 00:55:20
● 2015-10-18 01:40:04
● 2017-08-20 02:22:40
○ 2026-02-14 19:50:02
○ 2026-07-22 18:47:44
○NSns02.atsrv.jp2015-10-18 → 2017-08-20 · 5 obs
○ 2015-05-27 00:55:20
● 2015-10-18 01:40:04
● 2017-08-20 02:22:40
○ 2026-02-14 19:50:02
○ 2026-07-22 18:47:44
○NSns03.ex-cloud.jp2015-10-18 → 2017-08-20 · 5 obs
○ 2015-05-27 00:55:20
● 2015-10-18 01:40:04
● 2017-08-20 02:22:40
○ 2026-02-14 19:50:02
○ 2026-07-22 18:47:44
○NSns04.ex-cloud.jp2015-10-18 → 2017-08-20 · 5 obs
○ 2015-05-27 00:55:20
● 2015-10-18 01:40:04
● 2017-08-20 02:22:40
○ 2026-02-14 19:50:02
○ 2026-07-22 18:47:44
●NSns1.dns.ne.jp2026-02-14 → 2026-07-22 · 3 obs
○ 2017-08-20 02:22:40
● 2026-02-14 19:50:02
● 2026-07-22 18:47:44
○NSns1.domain.livedoor.com2008-01-03 → 2015-05-27 · 4 obs
● 2008-01-03 23:48:14
● 2015-05-27 00:55:20
○ 2015-10-18 01:40:04
○ 2026-07-22 18:47:44
●NSns2.dns.ne.jp2026-02-14 → 2026-07-22 · 3 obs
○ 2017-08-20 02:22:40
● 2026-02-14 19:50:02
● 2026-07-22 18:47:44
○NSns2.domain.livedoor.com2008-01-03 → 2015-05-27 · 4 obs
● 2008-01-03 23:48:14
● 2015-05-27 00:55:20
○ 2015-10-18 01:40:04
○ 2026-07-22 18:47:44
○MXdev.cuio.net2008-01-03 → 2008-01-03 · 3 obs
● 2008-01-03 23:48:14
○ 2015-05-27 00:55:20
○ 2026-07-22 18:47:44
○MXjp2.cuio.net2015-05-27 → 2017-08-20 · 5 obs
○ 2008-01-03 23:48:14
● 2015-05-27 00:55:20
● 2017-08-20 02:22:40
○ 2026-02-14 19:50:02
○ 2026-07-22 18:47:44
●MXtk.cuio.net2026-02-14 → 2026-07-22 · 3 obs
○ 2017-08-20 02:22:40
● 2026-02-14 19:50:02
● 2026-07-22 18:47:44
○A153.121.46.2262015-05-27 → 2017-08-20 · 5 obs
○ 2008-01-03 23:48:14
● 2015-05-27 00:55:20
● 2017-08-20 02:22:40
○ 2026-02-14 19:50:02
○ 2026-07-22 18:47:44
●A153.121.57.242026-02-14 → 2026-07-22 · 3 obs
○ 2017-08-20 02:22:40
● 2026-02-14 19:50:02
● 2026-07-22 18:47:44
●A2001:e42:102:1109:153:121:57:242026-02-14 → 2026-07-22 · 3 obs
○ 2017-08-20 02:22:40
● 2026-02-14 19:50:02
● 2026-07-22 18:47:44
○A216.75.41.1642008-01-03 → 2008-01-03 · 3 obs
● 2008-01-03 23:48:14
○ 2015-05-27 00:55:20
○ 2026-07-22 18:47:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netl.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net...-
cuio.netns1.dns.ne.jp, ns2.dns.ne.jp-

✅ Authoritative Response

Server:61.211.236.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cuio.net (unsigned zone)

⏱️ Timing

Total: 1035ms | Queries: -

📄 Records

TypeCountSample Data
A1153.121.57.24
AAAA12001:e42:102:1109:153:121:57:24
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1tk.cuio.net (pri: 10)
TXT2v=spf1 ip4:153.121.57.24 include:_spf.go, google-site-verification=qVP8DsPDuQ8nHSK
SOA1master.dns.ne.jp tech.sakura.ad.jp

Analysis

Hierarchy

tk.cuio.net and jp2.cuio.net each fall under cuio.net as their parent domain.

IP Addresses

cuio.net resolves to the IP addresses 153.121.57.24 and 2001:e42:102:1109:153:121:57:24

Host names like tk.cuio.net are further examples that share IP numbers with cuio.net.

Name Servers

cuio.net carries NS records delegating to master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

cuio.net partially shares its NS delegation with several other domains, including gts-japan.com, shop.prim-rose.net, spa-wellness.co.jp and two others.

These name servers often co-occur with the name servers dns.sakura.ad.jp.

master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1 — each hostname maps to exactly one IP address.

Mail Servers

The sole mail server for cuio.net is tk.cuio.net.

tk.cuio.net carries a single IP number, which is 153.121.57.24.