ex-cs.jp - robtex.com

ex-cs.jp

DNSSEC⚠️ Not signed
A52.68.3.99🇯🇵 Amazon52.68.0.0/15 EC2 NRT prefix
PTRmail.csplan.co.jp
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
MXmail.ex-cs.jp ⭐
A49.212.235.233🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww3493.sakura.ne.jp
TXTv=spf1 ip4:49.212.235.233 mx -all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2026-01-26 #2

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=1774519203

Subdomains

mail.ex-cs.jp
sv.ex-cs.jp

Same first word

ex-cs.jp

Similar names

sec-x.com
c-(0x736578).de
x-sec.pl
cs-ex.com
ce-xs.com
x-sec.info
x-sec.de
x-sec.com

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpp75.atw.ne.jpsv.ex-cs.jpMXmail.ex-cs.jpsv.ex-cs.jpA52.68.3.99202.221.143.126
●NSmaster.dns.ne.jp2016-07-28 → 2026-03-26 · 3 obs
○ 2016-04-15 19:28:36
● 2016-07-28 02:44:32
● 2026-03-26 10:17:18
●NSns1.dns.ne.jp2016-07-28 → 2026-03-26 · 3 obs
○ 2016-04-15 19:28:36
● 2016-07-28 02:44:32
● 2026-03-26 10:17:18
●NSns2.dns.ne.jp2016-07-28 → 2026-03-26 · 3 obs
○ 2016-04-15 19:28:36
● 2016-07-28 02:44:32
● 2026-03-26 10:17:18
○NSp75.atw.ne.jp2015-08-16 → 2016-04-15 · 4 obs
● 2015-08-16 16:37:12
● 2016-04-15 19:28:36
○ 2016-07-28 02:44:32
○ 2026-03-26 10:17:18
○NSsv.ex-cs.jp2015-08-16 → 2016-04-15 · 4 obs
● 2015-08-16 16:37:12
● 2016-04-15 19:28:36
○ 2016-07-28 02:44:32
○ 2026-03-26 10:17:18
●MXmail.ex-cs.jp2016-07-28 → 2026-03-26 · 3 obs
○ 2016-04-15 19:28:36
● 2016-07-28 02:44:32
● 2026-03-26 10:17:18
○MXsv.ex-cs.jp2015-08-16 → 2016-04-15 · 4 obs
● 2015-08-16 16:37:12
● 2016-04-15 19:28:36
○ 2016-07-28 02:44:32
○ 2026-03-26 10:17:18
○A202.221.143.1262015-08-16 → 2017-01-23 · 4 obs
● 2015-08-16 16:37:12
● 2017-01-23 02:57:38
○ 2026-03-26 10:17:16
○ 2026-03-26 10:17:18
●A52.68.3.992026-03-26 → 2026-03-26 · 3 obs
○ 2017-01-23 02:57:38
● 2026-03-26 10:17:16
● 2026-03-26 10:17:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
ex-cs.jpns2.dns.ne.jp, ns1.dns.ne.jp2 records

✅ Authoritative Response

Server:61.211.236.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ex-cs.jp (unsigned zone)

⏱️ Timing

Total: 1021ms | Queries: -

📄 Records

TypeCountSample Data
A152.68.3.99
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1mail.ex-cs.jp (pri: 10)
TXT1v=spf1 ip4:49.212.235.233 mx -all
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

ex-cs.jp is the parent of mail.ex-cs.jp and sv.ex-cs.jp.

IP Addresses

ex-cs.jp resolves to a single IP: 52.68.3.99.

Other host names, for instance mail.csplan.co.jp, sv.arm-h.com, arm-h.com, mail.f-style.info and mail.taiseiltd.jp share IP numbers with ex-cs.jp.

Name Servers

ex-cs.jp delegates to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

ex-cs.jp shares some name servers with other domains, for example sercomm.co.jp, cp-entry.sakura.ne.jp, yagumokai.org, simecon.com and ek-bs.com.

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

ex-cs.jp is handled by a single mail server, mail.ex-cs.jp.

ex-cs.jp shares the same mail server setup as other domains, for instance mail.ex-cs.jp and sv.ex-cs.jp.

Host name mail.ex-cs.jp points to IP 49.212.235.233.