ctserv.jp - robtex.com

ctserv.jp

DNSSEC⚠️ Not signed
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
TXTv=spf1 include:_a.ctserv.jp include:_b.ctserv.jp ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2023-01-06 #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=1778647503

Subdomains

svr1.ctserv.jp

Same first word

ctserv.jp
ctserv.net
ctserv.com
ctserv.org

Similar names

rvscet.com
tecsrv.com
cvster.de
scretv.com
crestv.net
rcsvet.cz
sctver.ru
vcster.com
cvster.nl
cvster.net
srvtec.com
vscert.com
restcv.com
vrscet.in
vrtecs.com
stvrce.com
cvrest.com
tcserv.net
cvster.com
tcserv.co.uk
rvscet.ac.in
srvtec.net
rcsvet.sk
vertsc.com
tcserv.de
sctver.gob.mx
rvstec.com
rtesvc.com
crestv.com

DNS History

3 records (3 active, 0 former)

20192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jp
●NSmaster.dns.ne.jp2018-05-17 → 2026-05-13 · 2 obs
● 2018-05-17 19:55:12
● 2026-05-13 04:54:26
●NSns1.dns.ne.jp2018-05-17 → 2026-05-13 · 2 obs
● 2018-05-17 19:55:12
● 2026-05-13 04:54:26
●NSns2.dns.ne.jp2018-05-17 → 2026-05-13 · 2 obs
● 2018-05-17 19:55:12
● 2026-05-13 04:54:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
ctserv.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 ctserv.jp (unsigned zone)

⏱️ Timing

Total: 1403ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
TXT1v=spf1 include:_a.ctserv.jp include:_b.c
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

Hierarchy

ctserv.jp is a parent of svr1.ctserv.jp.

Name Servers

ctserv.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

At least part of the name servers for ctserv.jp are shared with other domains, for instance aalive.jp, liha-co.com, overa.sakura.ne.jp, koorimuta.com and nohala.sakura.ne.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