ct-net.jp - robtex.com

Check domain reputation for ct-net.jp →

ct-net.jp

DNSSEC⚠️ Not signed
A219.101.139.90🇯🇵 GIGAINFRA219.101.128.0/17 BBT-CIDR-BLOCK
PTRxe090.ct-net.ne.jp
NSns-cloud-e1.googledomains.com ⭐
A2001:4860:4802:32::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e1.googledomains.com
A216.239.32.110🇺🇸 Google216.239.32.0/24
PTRns-cloud-e1.googledomains.com
NSns-cloud-e2.googledomains.com
A2001:4860:4802:34::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e2.googledomains.com
A216.239.34.110🇺🇸 Google216.239.34.0/24
PTRns-cloud-e2.googledomains.com
NSns-cloud-e3.googledomains.com
A2001:4860:4802:36::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e3.googledomains.com
A216.239.36.110🇺🇸 Google216.239.36.0/24
PTRns-cloud-e3.googledomains.com
NSns-cloud-e4.googledomains.com
A2001:4860:4802:38::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e4.googledomains.com
A216.239.38.110🇺🇸 Google216.239.38.0/24
PTRns-cloud-e4.googledomains.com
MXsmtp16.ct-net.ne.jp ⭐
A219.101.139.42🇯🇵 GIGAINFRA219.101.128.0/17 BBT-CIDR-BLOCK
PTRxe042.ct-net.ne.jp
MXsmtp11.ct-net.ne.jp(30)
A219.101.139.40🇯🇵 GIGAINFRA219.101.128.0/17 BBT-CIDR-BLOCK
PTRsmtp11.ct-net.ne.jp
TXTgoogle-site-verification=XPcibxvdy7Wc7Wrw300kQNyng_l2bpx9H-t_LkEJ-Lk
TXTv=spf1 include:_spf-g.ct-net.ne.jp ~all
TXTgoogle-site-verification=2LcWXW4MBt-qZF2V-0X-FrDnjIoQifM0tGuatapujb0
SOAns-cloud-e1.googledomains.comcloud-dns-hostmaster@google.com serial=1

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1786747502

Same first word

ct-net.co.uk
ct-net.ne.jp
ct-net.org
ct-net.nl
ct-net.co.jp
ct-net.jp
ct-net.com
ct-net.com.tw
ct-net.de

Similar names

tc-ent.co.jp
t-cnet.or.jp
nt-tec.com
tn-tec.net
tc-net.ch
c-nett.fr
tn-tec.com
tnt-ec.com
tc-net.com
tc-net.info
tc-net.co.kr
ntec-t.com
tc-net.org
net-tc.com
tc-net.de
tn-tec.eu
net-ct.it
tc-net.com.cn
tc-net.jp
tc-net.net
c-nett.no
tc-net.co.jp
ett-cn.com

DNS History

16 records (7 active, 9 former)

20162017201820192020202120222023202420252026NSns-cloud-e1.googledomains.comns-cloud-e2.googledomains.comns-cloud-e3.googledomains.comns-cloud-e4.googledomains.comns.ct-net.ne.jpns1.ct-net.ne.jpns2.ct-net.ne.jpns3.ct-net.ne.jpMXsmtp11.ct-net.ne.jpsmtp16.ct-net.ne.jpsmtp11c.ct-net.ne.jpsmtp13.ct-net.ne.jpsmtp13c.ct-net.ne.jpsmtp8.ct-net.ne.jpA219.101.139.90219.101.139.39
●NSns-cloud-e1.googledomains.com2026-05-09 → 2026-08-14 · 3 obs
○ 2017-01-22 13:20:40
● 2026-05-09 06:21:50
● 2026-08-14 22:48:22
●NSns-cloud-e2.googledomains.com2026-05-09 → 2026-08-14 · 3 obs
○ 2017-01-22 13:20:40
● 2026-05-09 06:21:50
● 2026-08-14 22:48:22
●NSns-cloud-e3.googledomains.com2026-05-09 → 2026-08-14 · 3 obs
○ 2017-01-22 13:20:40
● 2026-05-09 06:21:50
● 2026-08-14 22:48:22
●NSns-cloud-e4.googledomains.com2026-05-09 → 2026-08-14 · 3 obs
○ 2017-01-22 13:20:40
● 2026-05-09 06:21:50
● 2026-08-14 22:48:22
○NSns.ct-net.ne.jp2015-08-16 → 2017-01-22 · 4 obs
● 2015-08-16 12:27:08
● 2017-01-22 13:20:40
○ 2026-05-09 06:21:50
○ 2026-08-14 22:48:22
○NSns1.ct-net.ne.jp2015-08-16 → 2016-01-16 · 4 obs
● 2015-08-16 12:27:08
● 2016-01-16 02:44:20
○ 2016-04-10 09:06:46
○ 2026-08-14 22:48:22
○NSns2.ct-net.ne.jp2016-04-10 → 2017-01-22 · 5 obs
○ 2016-01-16 02:44:20
● 2016-04-10 09:06:46
● 2017-01-22 13:20:40
○ 2026-05-09 06:21:50
○ 2026-08-14 22:48:22
○NSns3.ct-net.ne.jp2015-08-16 → 2017-01-22 · 4 obs
● 2015-08-16 12:27:08
● 2017-01-22 13:20:40
○ 2026-05-09 06:21:50
○ 2026-08-14 22:48:22
●MXsmtp11.ct-net.ne.jp2015-08-16 → 2026-08-14 · 5 obs
● 2015-08-16 12:27:08
● 2016-01-16 02:44:20
○ 2016-04-10 09:06:46
● 2016-08-21 16:26:28
● 2026-08-14 22:48:22
○MXsmtp11c.ct-net.ne.jp2016-04-10 → 2016-04-19 · 5 obs
○ 2016-01-16 02:44:20
● 2016-04-10 09:06:46
● 2016-04-19 11:17:20
○ 2016-08-21 16:26:28
○ 2026-08-14 22:48:22
○MXsmtp13.ct-net.ne.jp2016-08-21 → 2017-01-22 · 5 obs
○ 2016-04-19 11:17:20
● 2016-08-21 16:26:28
● 2017-01-22 13:20:40
○ 2026-05-09 06:21:50
○ 2026-08-14 22:48:22
○MXsmtp13c.ct-net.ne.jp2016-04-10 → 2016-04-19 · 5 obs
○ 2016-01-16 02:44:20
● 2016-04-10 09:06:46
● 2016-04-19 11:17:20
○ 2016-08-21 16:26:28
○ 2026-08-14 22:48:22
●MXsmtp16.ct-net.ne.jp2026-05-09 → 2026-08-14 · 3 obs
○ 2017-01-22 13:20:40
● 2026-05-09 06:21:50
● 2026-08-14 22:48:22
○MXsmtp8.ct-net.ne.jp2015-08-16 → 2016-01-16 · 4 obs
● 2015-08-16 12:27:08
● 2016-01-16 02:44:20
○ 2016-04-10 09:06:46
○ 2026-08-14 22:48:22
○A219.101.139.392015-08-16 → 2017-01-22 · 4 obs
● 2015-08-16 12:27:08
● 2017-01-22 13:20:40
○ 2026-05-09 06:21:50
○ 2026-08-14 22:48:22
●A219.101.139.902026-05-09 → 2026-08-14 · 3 obs
○ 2017-01-22 13:20:40
● 2026-05-09 06:21:50
● 2026-08-14 22:48:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
ct-net.jpns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com, ns-cloud-e1.googledomains.com-

✅ Authoritative Response

Server:216.239.38.110

NS records: ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com, ns-cloud-e1.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ct-net.jp (unsigned zone)

⏱️ Timing

Total: 1908ms | Queries: -

📄 Records

TypeCountSample Data
A1219.101.139.90
NS4ns-cloud-e1.googledomains.com, ns-cloud-e3.googledomains.com...
MX2smtp11.ct-net.ne.jp (pri: 30), smtp16.ct-net.ne.jp (pri: 20)
TXT3v=spf1 include:_spf-g.ct-net.ne.jp ~all, google-site-verification=XPcibxvdy7Wc7Wr...
SOA1ns-cloud-e1.googledomains.com cloud-dns-

Analysis

IP Addresses

ct-net.jp has exactly one IP address — 219.101.139.90.

Name Servers

Four name servers handle the delegation for ct-net.jp: ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com and ns-cloud-e4.googledomains.com.

ct-net.jp partially shares its NS delegation with several other domains, including mpmfire.com, beautifullyeden.com, sesamesea.com and two others.

ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com and ns-cloud-e4.googledomains.com each carry two IP addresses. ns-cloud-e1.googledomains.com has 216.239.32.110 and 2001:4860:4802:32::6e; ns-cloud-e2.googledomains.com has 216.239.34.110 and 2001:4860:4802:34::6e; ns-cloud-e3.googledomains.com has 216.239.36.110 and 2001:4860:4802:36::6e; ns-cloud-e4.googledomains.com has 216.239.38.110 and 2001:4860:4802:38::6e.

Mail Servers

ct-net.jp uses two mail servers, smtp11.ct-net.ne.jp and smtp16.ct-net.ne.jp.

ct-net.jp uses the same mail servers as other domains, including mail.ct-net.ne.jp.

At least a portion of ct-net.jp's mail servers are also used by other domains, for example frontone.jp.

These mail servers tend to be used in conjunction with the mail servers smtp13.ct-net.ne.jp.

smtp11.ct-net.ne.jp resolves to 219.101.139.40. smtp16.ct-net.ne.jp resolves to 219.101.139.42. Both host names point to a single IP number.