robocon-japan.com - robtex.com

robocon-japan.com

DNSSEC⚠️ Not signed
A183.181.97.161🇯🇵 XSERVER-AS183.181.96.0/23 XSERVER Inc.
PTRsv7160.xserver.jp
NSns1.xserver.jp ⭐
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MXrobocon-japan.com ⭐
A183.181.97.161🇯🇵 XSERVER-AS183.181.96.0/23 XSERVER Inc.
PTRsv7160.xserver.jp
TXTv=spf1 +a:sv7160.xserver.jp +a:robocon-japan.com +mx include:spf.sender.xserv...
SOAns1.xserver.jproot@xserver.jp serial=0

com

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=1774729952

MX for

robocon-japan.com

Same first word

robocon-japan.com

DNS History

15 records (7 active, 8 former)

20162017201820192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpmaster.dns.ne.jpns1.dns.ne.jpns1.tsukaeru.netns2.dns.ne.jpns2.tsukaeru.netMXrobocon-japan.commail.robocon-japan.comA183.181.97.161203.83.245.10219.94.155.204
○NSmaster.dns.ne.jp2017-10-16 → 2017-10-16 · 4 obs
○ 2016-07-01 22:01:22
● 2017-10-16 19:23:40
○ 2026-03-07 15:04:08
○ 2026-03-28 20:59:08
○NSns1.dns.ne.jp2017-10-16 → 2017-10-16 · 4 obs
○ 2016-07-01 22:01:22
● 2017-10-16 19:23:40
○ 2026-03-07 15:04:08
○ 2026-03-28 20:59:08
○NSns1.tsukaeru.net2015-06-05 → 2016-07-01 · 4 obs
● 2015-06-05 13:22:38
● 2016-07-01 22:01:22
○ 2017-10-16 19:23:40
○ 2026-03-28 20:59:08
●NSns1.xserver.jp2026-03-07 → 2026-03-28 · 3 obs
○ 2017-10-16 19:23:40
● 2026-03-07 15:04:08
● 2026-03-28 20:59:08
○NSns2.dns.ne.jp2017-10-16 → 2017-10-16 · 4 obs
○ 2016-07-01 22:01:22
● 2017-10-16 19:23:40
○ 2026-03-07 15:04:08
○ 2026-03-28 20:59:08
○NSns2.tsukaeru.net2015-06-05 → 2016-07-01 · 4 obs
● 2015-06-05 13:22:38
● 2016-07-01 22:01:22
○ 2017-10-16 19:23:40
○ 2026-03-28 20:59:08
●NSns2.xserver.jp2026-03-07 → 2026-03-28 · 3 obs
○ 2017-10-16 19:23:40
● 2026-03-07 15:04:08
● 2026-03-28 20:59:08
●NSns3.xserver.jp2026-03-07 → 2026-03-28 · 3 obs
○ 2017-10-16 19:23:40
● 2026-03-07 15:04:08
● 2026-03-28 20:59:08
●NSns4.xserver.jp2026-03-07 → 2026-03-28 · 3 obs
○ 2017-10-16 19:23:40
● 2026-03-07 15:04:08
● 2026-03-28 20:59:08
●NSns5.xserver.jp2026-03-07 → 2026-03-28 · 3 obs
○ 2017-10-16 19:23:40
● 2026-03-07 15:04:08
● 2026-03-28 20:59:08
○MXmail.robocon-japan.com2015-06-05 → 2016-07-01 · 4 obs
● 2015-06-05 13:22:38
● 2016-07-01 22:01:22
○ 2017-10-16 19:23:40
○ 2026-03-28 20:59:08
●MXrobocon-japan.com2017-10-16 → 2026-03-28 · 3 obs
○ 2016-07-01 22:01:22
● 2017-10-16 19:23:40
● 2026-03-28 20:59:08
●A183.181.97.1612026-03-07 → 2026-03-28 · 3 obs
○ 2017-10-16 19:23:40
● 2026-03-07 15:04:08
● 2026-03-28 20:59:08
○A203.83.245.102015-06-05 → 2016-07-01 · 4 obs
● 2015-06-05 13:22:38
● 2016-07-01 22:01:22
○ 2017-10-16 19:23:40
○ 2026-03-28 20:59:08
○A219.94.155.2042017-10-16 → 2017-10-16 · 4 obs
○ 2016-07-01 22:01:22
● 2017-10-16 19:23:40
○ 2026-03-07 15:04:08
○ 2026-03-28 20:59:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
robocon-japan.comns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...-

✅ Authoritative Response

Server:202.226.36.247

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for robocon-japan.com (unsigned zone)

⏱️ Timing

Total: 4123ms | Queries: -

📄 Records

TypeCountSample Data
A1183.181.97.161
NS5ns4.xserver.jp, ns5.xserver.jp...
MX1robocon-japan.com (pri: 0)
TXT1v=spf1 +a:sv7160.xserver.jp +a:robocon-j
SOA1ns1.xserver.jp root.xserver.jp

Analysis

Mail Server Role

robocon-japan.com serves as the mail server for robocon-japan.com.

IP Addresses

robocon-japan.com points to a single IP number: 183.181.97.161.

Other host names, for instance sv7160.xserver.jp, mail.fpm.co.jp, mail.finf.jp, k-tohto.ac.jp and nishiasa.co.jp share IP numbers with robocon-japan.com.

Name Servers

robocon-japan.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

robocon-japan.com shares name servers with other domains at least partially, for instance mon0115.com, flash-edge.com, the-makers.com, place-lab.com and yukihiro.org.

Host names with three IP numbers:

ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names with one IP number:

ns2.xserver.jp points to: 35.72.43.26.

ns3.xserver.jp points to: 202.226.36.247.

Mail Servers

A single mail server handles robocon-japan.com and robocon-japan.com.

Host name robocon-japan.com resolves to IP 183.181.97.161.