ct1.jp - robtex.com

ct1.jp

DNSSEC⚠️ Not signed
A2403:3a00:101:f:219:94:163:203🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww1563.sakura.ne.jp
A219.94.163.203🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, 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
MXct1.jp ⭐
A2403:3a00:101:f:219:94:163:203🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww1563.sakura.ne.jp
A219.94.163.203🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww1563.sakura.ne.jp
TXTv=spf1 a:www1563.sakura.ne.jp mx ~all
TXTMS=ms66382389
TXTgoogle-site-verification=Pwu_nCccwf76X5TYZXEQCDsi0eioWkCoTPwR8o3Kbzg
SOAmaster.dns.ne.jptech@sakura.ad.jp 2026-03-26 #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=1775960103

MX for

ct1.jp

Same first word

ct1.pl
ct1.us
ct1.xyz
ct1.io
ct1.org
ct1.jp
ct1.at
ct1.mobi
ct1.com
ct1.net
ct1.cc
ct1.cz
ct1.ro
ct1.ru
ct1.ca
ct1.no

Similar names

tc1.fr
1tc.us
1ct.at
tc1.in
tc1.info
c1t.net
c1t.cc
c1t.uk
1ct.de
t1c.de
1ct.lt
t1c.jp
1tc.cc
c1t.de
t1c.ru
t1c.net
tc1.de
tc1.jp
tc1.ir
t1c.org
1tc.net
1ct.net
tc1.app
tc1.cloud
1tc.de
1tc.pw
1tc.ru
tc1.ch
tc1.net
tc1.nl
tc1.it
1ct.com
1ct.es
t1c.com
t1c.me
tc1.me
1ct.us
1ct.io
1tc.co
1ct.org
1ct.biz
1ct.co
tc1.ge
1ct.nl
tc1.us
c1t.com
1tc.fr
c1t.nl
1tc.com

DNS History

6 records (6 active, 0 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXct1.jpA219.94.163.2032403:3a00:101:f:219:94:163:203
●NSmaster.dns.ne.jp2015-05-18 → 2026-04-12 · 2 obs
● 2015-05-18 21:49:06
● 2026-04-12 02:28:44
●NSns1.dns.ne.jp2015-05-18 → 2026-04-12 · 2 obs
● 2015-05-18 21:49:06
● 2026-04-12 02:28:44
●NSns2.dns.ne.jp2015-05-18 → 2026-04-12 · 2 obs
● 2015-05-18 21:49:06
● 2026-04-12 02:28:44
●MXct1.jp2015-05-18 → 2026-04-12 · 2 obs
● 2015-05-18 21:49:06
● 2026-04-12 02:28:44
●A219.94.163.2032015-05-18 → 2026-04-12 · 2 obs
● 2015-05-18 21:49:06
● 2026-04-12 02:28:44
●A2403:3a00:101:f:219:94:163:2032016-06-06 → 2026-04-12 · 3 obs
○ 2015-05-18 21:49:06
● 2016-06-06 06:28:12
● 2026-04-12 02:28:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
ct1.jpns1.dns.ne.jp, ns2.dns.ne.jp2 records

✅ 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 ct1.jp (unsigned zone)

⏱️ Timing

Total: 972ms | Queries: -

📄 Records

TypeCountSample Data
A1219.94.163.203
AAAA12403:3a00:101:f:219:94:163:203
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1ct1.jp (pri: 10)
TXT3v=spf1 a:www1563.sakura.ne.jp mx ~all, MS=ms66382389...
SOA1master.dns.ne.jp tech.sakura.ad.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)

Analysis

Mail Server Role

ct1.jp is the mail server for ct1.jp.

IP Addresses

ct1.jp resolves to two IP numbers: 2403:3a00:101:f:219:94:163:203 and 219.94.163.203.

Other host names, for instance homereha.com, stragglethorpe.com, www1563.sakura.ne.jp, chacan.net and kottenai.com share IP numbers with ct1.jp.

Name Servers

ct1.jp delegates to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

ct1.jp shares some name servers with other domains, for example zuncono.sakura.ne.jp, h-gallery.com, b-sac-g.sakura.ne.jp, joseluis.jp and kariya-infobox.jp.

These name servers are commonly used with the name servers dns.sakura.ad.jp.

Host names with a single IP: 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.

Mail Servers

One mail server handles ct1.jp.

ct1.jp resolves to two IPs: 2403:3a00:101:f:219:94:163:203 and 219.94.163.203.